If you're asking how the game chooses which element is chosen to be used, its a circular form of Thunder->Fire->Freeze/repeat
If you're asking which each of the elements do, you know what Thunder does. Fire I heard does the same thing it did in 9A- will glide with momentum in the air, and can kill. I believe in bowler's Sora Vs Isaac video Freeze just puts them into the frozen state and bounces them up a little before they break out

It starts with Fire first. Fire -> Blizzard -> Thunder.

I wonder what type of uses Blizzard will have.. Seems like nobody I've seen play Sora has figured out how to use it yet

I'm guessing Blizzard's potential would be into setups/mixups into something like flowmotion, or for it to be used as a get-off-me tool.
It'll have some use for more advanced play such as spacing, which is something Sora could really benefit off from.

imo..
It's not too amazing-looking in contrast to having Fire again, which is all kinds of lit.
...no?
ok.

If fire has a strong knockback and slows your falling momentum, I could definitely see a great kill and OoS move. I don't think blizzard is going to be very effective (really don't see a difference between that and his Nspec).

It doesn't look very impressive, yes-in hindsight.

But I think it'll be for good use in the neutral. The fast startup and range are evidence for me to believe so.

(Yes, I'm actually optimistic about a character's moveset change.)
mainly cuz it's a well-needed buff

All 3 of the elements have good use to them;

Fire for killing/space,
Thunder for edge-guarding from high/killing,
And Blizzard for spacing/neutral/possible combos???

the "possible combos???" part is probably a stretch, but who knows.

Blizzard edgeguards sound so cool

Sora needs Fire so badly: I think he'd be pretty close to A tier if only he had a move like v0.9a Fire, so I hope Beta doesn't disappoint.

Sora's the hardest character for me to handle in this game. He has a hard time killing, but he'll deal 60% to you for every 30% he gets. I played a match with Sora and he lasted over 200% with all 4 stocks! I got dragged to over 150% each stock as well. If I catch Sora, I'd need to get him with a surefire kill combo or attack, but I can't get the punish even if I attack after his ending lag. I know what Sora's doing but I can't do anything about it but hold shield! And even if I hold shield for the entirety of his side B to [attacks + recovery + more attacks] it just doesn't pay off.

Can anyone whip up a anti-Sora guide or strategy? I need to figure out how to avoid him more than I already am. Or which moves are safe to challenge.

I'm sorry to say this, but you main Ichigo, you have a giant sword and you shouldn't be finding this matchup difficult in the slightest. You can use near enough any of your faster attacks, or moves like UTilt, Nair and UAir to keep Sora in a disadvantage state. Furthermore, Sora doesn't have a good approach game at all, so you can just play keepaway, nor does he have a good neutral, so that's a point in your favour as well. As long as you can use your giant sword to keep the Keyblade guy out without leaving yourself open (hint: don't over commit to an attack) as well as keep anti-airing him with UTilt or Nair, because he'll be approaching from there. If he's using Side-B to approach, you can very easily react to it and just keep it out of the way, or if you have the range to punish it (hint: Ichigo), throw out a move that can just challenge it super easy. Same principles apply regardless of character: make him approach and keep him in a disadvantage state. His landing options aren't great, so juggling helps.
Also, if he's offstage, he's at a heavy disadvantage, spike him or hit him out of his double jump. His recovery's s***.

aand there it is. I feel dumb...

I know how to play Ichigo, but I sort of dropped him a while back to train Sonic exclusively. Ichigo would definitely tip the scales in this fight. Sora's only real approaches are neutral B, side B (which if you're playing keep away should be easy to react to), and.. dash attack? Yeah, I can see your point.

I was having a hard time with Sonic because he only has one effective "projectile" which is neutral B. I'll definitely switch to Ichigo or someone better equipped if I run into him.

UpB is a projectile, and a good one.

There's also the fact that you can literally just camp him to death

Normally, I would rag on someone for getting obvious tactics and terminology wrong, but nah.
(sonic shouldn't be using DA, or SideB you prune)
oh... looks like I lied

(quick, mention something about sora so that this post is sora related)
I love sora's hair

No way, so do I

Also, one question, did Sora's BThrow change in Beta because of his new DownB? Cause y'know, Blizzaga is in his command deck in Beta but in v0.9b it's his BThrow.

I believe it did. Welcome change tbh, Sora's old BThrow has the most variable usefulness in 9b. It can either be really useful or really s*** depending on how well your opponent deals with freeze.