Another SSB4 page that I can compare to the game once it's out. Cuz I feel like it.

Note: These are changes from Brawl.

Global

Falling speed increased
Seems like a positive change. I didn't find Melee too fast, but it doesn't bother me that it's still slower than that.
Characters face screen more
Outside of taunts, this doesn't seem necessary, but as long as this doesn't cause any hitbox related issues, I don't care.
Jabs transition into launching attacks
Great idea, thank you Sakurai!
Ledge options no longer based on damage
I dunno, I thought the way it used to be made sense. Justified using percentages for damage. As long as they make 100% mean something else, I guess it's fine.
Ledges can be stolen
As long as edge-hogging is still possible, this seems fine; it really depends exactly how it works. Might help with character balance.
Ledge invincibility varies
Yes, please. Ledge stalling is annoying.
Earning a KO has the attacker flash
On one hand, this makes it easier to see who is getting the KOs in a timed battle without looking at the hud. On the other hand, it might promote vengeful play more in stock battles. From a competitive standpoint, it's irrelevent, though.
Multiple tethers per ledge
It makes sense, but I don't see this happening very often during normal play. Maybe on the rare occasion that you're playing a 4 player match, two players happen to be characters with tethers (which seem to be even rarer than in Brawl), and they both happen to get knocked offstage about the same distance and decide to recover in the same way. Yeah, pretty likely.

Mario

No known significant changes yet.

Scuttle Jump
Looks kinda strange for an initial jump, but as an aerial jump it would look too much like a flutter jump. Whatever, it's at least sensible within the source games logic.
Poltergust
Kinda disapointed it isnt his down special, but it makes more sense than Negative Zone.

Ribbon Smash
Although it resembles her previous up smash, I get the feeling this is actually her new down smash. The wide range, new rainbow attack, and history of her old down smash being difficult to balance all lead me to believe this. And as a down smash, this seems more interesting than her old one.
Rainbow
Assuming im correct about the above move, this is likely a new up smash. Since we have no info on duration, power, and knockback direction, its hard to judge, but the old up smash always felt good to hit with. Hopefully this one will as well.

New running animation
About time.
Base launch resistance
This sounds really interesting. I imagine it will make approaches against him more difficult.
New attacks involving punches and kicks
Aside from the improved range some of these seem to imply, I like that this new fighting style better justifies the Flying Slam. Bowser seems almost like a Luchador.
StF down aerial
Seems redundant when his down special is already a StF.

Different grounded Spinning Kong animation
Being that the move has different properties when grounded, this is quite sensible. I hope they do this for every such situation.
Rolling dash attack
I actually found DKs old dash attack pretty useful. This one looks to have less favorable hitboxes and more cooldown. Still, it's always nice to see them replace a Smash only move with one taken from the source games.

I'll finish the rest of this page later.

Post down here if you've got a disagreement you want to point out or whatever.