Yeah, the Zelda cast look like they got changed pretty substantially. Link especially looks like he'll be pretty different, with the new detonating bombs mechanic and being able to pick up previously fired arrows. All of that on top of a new grab and increased reach show that Link's gonna be pretty different this go around.
While Zelda still has a lot of the same moves, a lot of the hitboxes and animations look pretty different, not to mention I think she might have a few new moves as well(?)
Ganondorf still shares stuff with Falcon, sure, but he looks waaaaay more unique than he ever has before; I truly do believe he's gonna play differently than just "a heavy Captain Falcon". While that element will still be there, all the changes given to him are gonna bring a lot more to the table, I think.