For some of them. All of the characters have been "re-balanced", which means new moves for some to cover weaknesses, and changed moves for pretty much everyone. I only really notice changes in characters I play, but for Zidane this manifested as removed moves and links, (he can no longer chain everything to Meo Twister), and slightly faster magic attacks (they're still pretty bad). Cloud got faster brave attacks, and magic that actually does something.
This game Zidane if anything got changed for the better, with a full assist he can can break your brave no matter how high it is and kill you. The new ground move he got chains into EVERY OTHER MOVE HE HAS.