PS4 is guaranteed to pass Wii U, very very soon. Xbone however, is a 50/50 shot.. The US and the UK will give the Xbone the edge, but non UK Europe and especially Japan will favor the Wii U. It'll be another Xbox vs Gamecube type race; both poor sales, but both very close, while Sony runs away with it (though not by nearly as great a margin as PS2 vs Xbox/Gamecube)
I would say with games like Wii Fit U, Mario 3D World, Smash Brothers, DKC, Zelda, NSMB, etc.. It would be VERY difficult for Microsoft to edge out Nintendo's console but it is not impossible.







