Well Millia is the only character who changed looks drastically from OG GG to GGX.
GG Millia
GGX/current Millia
EDIT: Not counting Faust/Baldhead’s paper bag mask of course.
I wonder if Millia’s new outfit covers her legs. I think she wraps her arms around herself because she’s cold.
Furthermore, let’s be glad we didn’t get a guy with Millia’s powers. Or worse, this:
^^LOL
If Millia is wearing leggings does that mean no more panty shots?
Random thought, with the orange threads and the serial # like thing on her hat, could if be possible that Millia’s in jail (or doing a Cody and breaking out of one) this time out?
Fair trade.
Millia had color palettes that gave her leggings. They could easily do colors and textures to make her not have leggings They could easily not give her a hat and take away the leggings and there ya go.
I’ll update the OP with relevant info.
The HUD looks great. I like the TV screen portraits for the character faces. And the BURST while not being that great, craps all over +R’s Burst.
Looked at the movelists, it looks like Sol has a new air move, Ky is the same, and Millia has followups to her command roll and a new super.
TK BADMOOOOONSSSSSS
they gave him that just for kusoru
So, we can asume that the YRC would work similar to the FRC but to make stuff more accessible they slow time for those who have slow reaction/input time…
How much time it will be slowed is the question, cuz if is too much it can break the flow of the game imo 
At least they are not removing the tool that gives so much flexibility to the chars, though they removed the force breaks
Edit
I don’t remember being able to dash out of dust, that’s new right? so no more impossible dust?
The dust has 2 follow ups now, a jump to follow them in air, a dash to follow them on ground, for the looks it seems like impossible dusts as we know them could be out, but the new dash following maybe is there to compensate, but of course all of this is just speculation.
I…hate Millia’s new look 
The roses and shit will just be the art. I fully expect to see the same sprite.
I’m kinda glad she looks a tad more feminine.
She looks really beautiful, can’t wait to see how she’ll play in this
Also can’t wait to see who’ll be revealed by next week