"Nintendo Gamer magazine is under the impression that Bioshock creator Ken Levine is making a game for Wii U. The magazine assumes it’s Bioshock Infinite, which would make a lot of sense given that the game launches on Xbox 360 and PlayStation 3 later this year. Levine hasn’t announced anything for Wii U, but let’s hope that he does."
I hope this is true!

It also works good because Bioshock Infinite is releasing in October so it would be perfect timing to release it as a Wii U launch title.