It's gonna be Zero.
Just watch.
I loved using Zero in Tatsu and MvC, but they've milked him one too many times already. Not really understanding why they continue to use him. I mean, Classic Megaman is another fan fav and would be hella awesome to play as. Why not use him?
There's one benefit of having him in this though. Unlike Tatsu and MvC's style of playing, SSB's battle system is obviously completely different from the traditional "combo based" Cappy fighting series. It might be a fresh feel for him. Maybe having an "arcady" Zero to whack opponents around with wouldn't be so bad...
Any news on Dream Drop Distance?
Nope. And i'm getting more and more impatient.
But when the time does come for new KH info/scans/vids, Squeenix usually delivers well.