So, I'm not the only person who dislikes Wario's sprite. Good to know, good to know.

what if Ice Climbers were added to the roster then what

ICE CLIMBERS CLIMBERS!!!

Retexture of old chars like Wario and Sonic.
Stamina Mode
More than just 1 taunt

But some characters DO have more than 1 taunt?

Maybe add more Poke ball Pokémon like these bad ideas:

Spearow: When summoned it could use fly and disappear for a few seconds then comes back down fast at a random player. Doing a some what good amount of damage and knockback. (Make sure not to let him crash to the ground!)

Mew: Instead of appearing and flying away, let Mew use transform to turn into any of the available Poke ball Pokémon so then it could use the move that Pokémon would use.

Gyarados: When it appears it uses Hydro Pump to blast away anyone caught it the waters path. Make sure it appears for a few seconds! The move could be powerful but not to op at the same time!

Shaymin (Sky or Land Forme): Let it charge up for a bit then it unleashs Seed Flare. The explosion would have a medium range for example: half of Final Destination. It does 50% - 60% damage with huge knockback but it only appears rarely (Legendry Pokémon, that's why.)

Sylveon: When summoned, It then sits for a bit and targets a random player. After a set amount time it uses Dazzling Gleam and disappears. The move does something like 40% and medium knockback. When the move happens, the screen should flash for a second, just like Death when he does the Meteor smash. (move from Black Mage)

Haunter: When it appears, it fly's around and uses the move Lick. If a player is hit by the move they get some slight to decent knockback and gain 20% - 30% damage. It fly's in a path from left to right and uses Lick three times. After the third hit. It disappears.

Those are some ideas in mind. Hope they are good.

Speculating that all AT's will get a sprite upgrade, especially Renji due to Ichigo's new sprites (you know, to make them look more like they come from the same series, or it'll look kinda weird).
On that note I also speculate that Bankai Ichigo will also get a sprite remake (so it doesn't look weird when new Ichigo transforms into the old sprite textured Bankai).
And I speculate that the Mr Saturns in the background of Saturn Valley will have the new Mr Saturn sprite look.

Mainly the characters from old demos that have been unchanged keep their 2-3 taunts the same, but new characters and those characters with some sort of sprite or engine upgrade will have only one due to the change (such as Link).

Mario has 2 taunts though.

Just thought I might mention this

I speculate that work on Isaac only begun just now due to the fact that he's so likely to get in SSB4. They knew he was getting in SSF2, but they wanted to make sure SSB4 Isaac players weren't alienated when they played SSF2, and also the other way around.

Buff for Getsuga Tenshou
Make it chargeable but weaker than 0.9a and acts like it does now but more knockback like black mage's fully charged side smash

I read that and farted.

i speculate online will be functional within a few hours (like 2-5)

How...am I supposed to respond to that? he's a dev

Speculating! Big list maybe, I dunno. Anyways....:

Three taunts for characters huh?
Character resprites
Stage resprites (esp. Shadow Moses)
Animations for throwing items
Competitive option on Vs. Mode and Online maybe?
Bug Fixes (duh!)
More hazards (You know...hazards that are actually harmful and menacing )
What about giving more galaxies to Galaxy Tours
Yeah, the hazards in the terrorist, er, I mean Bomb Factory ....are a bit too menacing, so....how about toning that down a bit?
More Pokemon (hey, how about even adding a master ball in there? Wouldn't be too bad)
Rarer Smsah Balls
More Assist Trophies
Multiple songs
Faster star KOs
Even smarter CPU's *gasp*!
Tumbling and Teetering added for all characters.
Better CPU's in Turbo Mode (They aren't bad at all, but I kinda wish that they did better combos that are practically zero-to-death....on occasion.)
Unlockable items, pallet swaps, modes, Pokemon, music, etc. (It's possible).
Higher up special for Sonic.
Better AI on stages like Silph Co. and Clock Town
Better recovery for using Mario's cape.

More ridiculous speculations from superkid guaranteed to come.

Nice to see you're making fun of arguably, some ofthe most dangerous people in the whole planet.