Most of last year's games came from outside EAD. DKCR was Retro, Other M was Team Ninja/R&D1, Kirby was Good Feel. EAD Tokyo did Galaxy 2, but it came out early in the year, and Nintendo implied that it could have been out earlier but they didn't want it to compete with (read: be annihilated by) New Super Mario Bros. Wii.
That still leaves all four other EAD studios and Intelligent Systems. IS is almost certainly the team making Paper Mario 3DS. EAD 2 is most likely doing PilotWings Resort, likely in addition to a couple other things (hopefully they've started on Animal Crossing 3DS by now). EAD 3 is working on Zelda, which will hopefully be out this year. That leaves EADs 1 and 4, one of which is probably working on Mario Kart 3DS; the other, I don't know (please, God, let it be Pikmin).
So, yeah, not many possibilities for Wii games from internal teams. Maybe we'll see the return of Nintendo outsourcing stuff to other companies, like Next Level Games.