I think they announced serious interest in making this an online game.
Also, the music list is most interesting because it hints at potential characters. Why is Yoko in there? Could it be that, possibly, Sora or even Rikku is in the game? Chain of Hearts was on the DS so the characters meet the requirements and Squeenix is currently in Nintendo's pants getting used to the view again...
I'd say Sora is a bloody strong contender. Shame he's such a total gimp, but roll with the punches. I see no other reason why Yoko would be on the list. Same with Mitsuda - I wouldn't bet against Crono showing up (once again, shame the DBZ/CT art is so atrocious (imho!)).