According to a recent Kotaku post, the Nintendo 3DS is getting Street Fighter IV. I’m GUESSING it’ll be Super SFIV at this point, mind you, unless there’re too many fighters in there for the portable console to handle.
Either way, here: http://kotaku.com/5564149/a-whos-who-of-games-is-developing-for-the-3ds
EDIT: Lost Fragment and Nintendo’s own PDF says it’s Super SFIV 3D edition:
What do y’all think?