That is true I guess (regarding your first statement about dead/dormant series). None of the Chibi-Robo games have sold as much as any Advance Wars game so it's non-existent in anything other than the official Smash Bros games.

I expect that Andy will get in the game somehow because Wars is deserving of a character in this game and he's the best character to represent the series (all in addition to having a very unique moveset never seen in Smash Bros). Maybe as an unlockable in the final version (fingers crossed). Isaac got in so that gives me hope for Andy as well. IDK if Dixie's getting in this game because Diddy is going to have more priority than her as a veteran as well as being more important to the DK series and K. Rool eclipses her in popularity meaning he's likely to be the DK newcomer. Don't expect there to be 4 DK characters in the game.

Ummm....... Chibi Robo just had a game release like a year or two ago and has an amibo I wouldn't call that a dead franchise. It's just ironic how the franchise began its revival just after he was announced in SSF2.

They said prior to release that they were gonna shelve the series if zip lash didn't sell well and we all know how that turned out.
Link if you don't believe me
http://www.nintendolife.com/news/2015/1 ... _franchise

Well maybe if they had actually made Zip Lash a fun game than it would have sold better.

I think that Mewtwo is extremely likely, since he was originally going to be in Super Smash Flash 2, but was later on scrapped. He was an unlockable character in Melee, so I wouldn't be surprised if he was unlocked the same way in the Beta update.
Lucario, being a semi-clone and essentially Brawl's replacement for Mewtwo, could make it into the Beta, however I consider it slightly unlikely. He could be included because of his aura mechanic, but he's still commonly regarded as a semi-clone, so I doubt that he'll make it. If he does make it, I think he'll be unlocked through completing classic mode on the hardest difficulty as Meta-Knight, because of the MK vs Lucario battle in the Subspace Emissary.
Ike will more likely than not be excluded from Super Smash Flash 2. People all hate how many Fire Emblem characters are in the Smash Bros franchise, so I doubt they'd include another. That would just piss people off. Besides, he would have to be sprited from scratch, and that would take a lot of work.
King Dedede will probably make it into the Beta. With the inclusion of Bandana Dee, it's clear that the devs love the Kirby franchise. In fact, as B. Dee was revealed, they specifically said that they felt like B. Dee was the one character that they felt should've been in Sm4sh to give the Kirby franchise one more representative, so why would they not exclude Dedede? After all, he already has sprites for them to base his SSF2 sprites off of.
Ice climbers is an unlikely possibility due to the fact that they'd have to work in the two characters mechanic. They could hypothetically do it, but they probably won't due to the fact that it'd lag the game too much, along with it being hard to program.
R.O.B probably won't be included due to the fact that a large portion of Megaman's moveset is based on R.O.B's, and it's clear that he's R.O.B's replacement in this game.
Diddy Kong is definitely a likely possibility, and I think he would be unlocked by completing all of the Lord of the Jungle events.
I doubt they'll include Olimar for the sheer reason of "Who the f*** uses Olimar."
I'm honestly surprised that Ganondorf isn't in the game yet. I think that when they add Ganon, they'll likely base it off of Crusade's or Project M's Ganon. As much as I loathe Crusade, I won't deny that they put a lot of love into their Ganon.

Lucas is a pretty popular character, and I wouldn't be surprised if they included him as an unlockable. He's different enough from Ness to be considered his own character, and spriting him would simply be a matter of modifying Ness's sprites.
Wolf isn't popular in the slightest, and people are already content with the representation from the Star Fox franchise, so I doubt that he'll be included in the beta. I think he'd be better as a palette swap for fox.

I don't think King K. Rool will be included in the Beta due to the fact that a moveset would be hard to come up with or it would be too repetitive. In fact, that's probably the reason why he was only included in Sm4sh as a Mii fighter costume.
Just like with Wolf, Krystal is unlikely to get into the Beta because people for the most part are already content with the representation from Star Fox. People don't want her badly enough for her inclusion.
Similarly to K. Rool, Paper Mario probably won't be included due to the fact that a moveset would be hard to come up with. They had a lot of stuff to go off of with B. Dee, due to the fact that the Kirby franchise has so many moves and abilities to base his moveset off of (Spearcopter, Spear throw, Parasol dive, Wave beam, I could go on and on). With Paper Mario, the possibilities are much more limited in that aspect.
If Ridley isn't in the Beta, I will be shocked. People have been requesting him nonstop, he'd be relatively easy to sprite since he has so many sprite references across the Metroid franchise, and his moveset could be somewhat based off of Charizard's moveset, just like with how Megaman's moveset was based off of Rob's.

Geno is a very likely possibility. His moveset has lots of potential with plenty of moves from Super Mario RPG. The only problem would be creating his sprites from scratch.
Skull kid is too obscure to make it into Super Smash Flash 2.

As with Skull kid, these two characters are too obscure to get representation.

The thing all of these characters have in common is potential for a moveset. Personally, I think they're all fairy likely to make it into the Beta.
Simon Belmont is extrememly likely due to the fact that there are already plenty of sprites to go off of and a lot of potential for a moveset.
Snake already has a clear (and broken, but it's only about as broken as half the current cast's) moveset, but his sprites would have to be made from scratch or based off of Crusade's.
Ryu already has a clear moveset, many sprites to be used as references, and is an extremely likely candidate for the Beta.
Cloud also has a clear moveset, but no sprites to go off of. His sprites would have to be made from scratch, which makes him less likely than other characters.
Crash has plenty of potential for a moveset, but has little to no sprites, making him slightly less likely than Cloud.
Rayman is commonly suggested and has lots of potential for a moveset, along with plently of sprites to go off of, so I think he's a very likely candidate.

With there already being one character from Chrono Trigger (And everyone hating him), I doubt people would take it well if Crono was added. Besides, I think that if the devs planned on adding in Crono, they probably would've added him from the beginning along with Lloyd.
With Black Mage and (possibly) Cloud, I doubt the devs would add in yet another Final Fantasy character, no matter how loved Terra may be.
Let's face it: The Megaman Franchise has enough moves for over 5 totally unique characters. Zero being an unlockable character is extremely likely probable, due to his potential for a moveset and large amount of sprites to go off of.
Banjo-Kazooie is improbable despite the fact that a lot of their moves could be similar to Duck Hunt's moves, just like with Ridley/Charizard and Megaman/R.O.B. and the fact that there's a high demand for them, since they'd have to be sprited from scratch and they don't have as much potential for a moveset as many other characters.

Knuckles and shadow are both extremely likely inclusions, due to easy to make sprites, moveset potential, and high demand.

I think that Duck Hunt is much more likely to be included than Banjo-Kazooie due to their pre-defined moveset. They would still have to be sprited from scratch, but a pre-defined moveset makes them easier to include than Banjo-Kazooie.
Little Mac would be hard to sprite and is just an unlikely candidate due to his moves having... unique (yeah that's a polite way to describe them) hitboxes.
Villager, would have to be sprited from scratch, but I think he's a very likely candidate due to his moveset being pre-defined and fitting in with the rest of the SSF2 cast.
Shulk would be too hard to program and would have to be sprited from scratch, so I think that his inclusion is unlikely as well.
Robin has a unique moveset and, although they would have to be sprited from scratch, I think that they are a relatively likely inclusion due to the small amount of hatred they would recieve from being a Fire Emblem character because of their moveset's uniqueness.

I wouldn't be surprised if they added a new Pokemon.

In conclusion, I think that the roster will look less like this:

and more like this:

(Right click the image thing and choose "Open image in new tab")
But hey. Those are just my extremely skeptical and completely unjustified thoughts. ¯\_(ツ)_/¯ Tell me if they're any good or not!

Umm, Lloyd is from Tales of Symphonia...

And I don't think that having no sprites to go off with is that big of an issue when it comes to spriting characters.
I mean, I'm no expert on the matter, and I do agree that it would make the job alot harder, but we've seen the ingenuity of the devs so many times over the years that have gone by, so I doubt that an obstacle like that would massively hinder their creativity.

Excellent analysis. While I do think the roster is a bit too large and I expect less, all of your inclusions make sense and I wouldn't mind if any got in (tho plz rayman before everyone else )
off topic, but could I get a link to your Smash NX speculation roster? im curious of ur thoughts on that too..

Yeah, they're not going to add another 31 characters to the game. Maybe if you're lucky, you'll get 10.