After how well the previous game sold on the Wii, it was pretty obvious that the game would be coming to Wii U. This interview pretty much confirms it.
GC: In terms of the formats the game's on, has Nintendo told everyone not to announce Wii U games? Because it seems impossible to imagine this, and various other recently announced games, aren't going to be on it.
JN: I couldn't possibly tell you. [laughs]
GC: You couldn't tell me because you know or because you don't know?
JN: [laughs] I… couldn't possibly tell you. But I agree with you, wouldn't it be a great idea to get this onto a platform like the Wii U!
Both: [laughs]
The first one was a lot of fun, so I might get Transformed when it hits the Wii U. Can't pass up the change to race as Knuckles. 
