Let's discuss Retro Studios here, specifically, their new project for the Wii U. What would you like it to be, and why.
Games that were rumored at one point (Ask for the links, I'll give 'em to you)
Eternal Darkness 2
Western Style 1st person shooter
Third person shooter
Star Fox
Metroid Prime 4
Star Fox + Metroid crossover
F-Zero remodeled into a fighting/racing hybrid
SO wii all now that Retro's next game is coming to the Wii U, and that it will probably appeal to the mature crowd. I personally think that it will be a completely new IP, that has a twist as far as gameplay goes. NIntendo cloning COD wouldn't make sense, and it would just compete with KIller Freaks, among other games. Eternal Darkness 2 sounds ridiculous (Why would Retro work on that?). Star Fox was hinted at by a Nintendo magazine, but that series is all but dead. That leaves the crazy F-Zero rumor, which I got off of GAF, and Metroid. Metroid would be a good system seller on the Wii U, but the Prime series is finished.