Come on both Frostbite 3 and UE4 runns on wii u, it´s all abouth how mutch time programmers whant to putt on it. And one more thing No one! knows the real power of the wii u, Every thing on the net is speculated and estimated.
Can´t nintendo do the same thing ms did whit xb360? hide the real power. If u remember the 360 didn´t have 1080P, when released. When the ps3 came ms did a firmware upd to 360