EA has confirmed Madden 25 will not be released for the Wii U.
Haha. Next-gen? It can't even handle Madden. I'd be willing to bet it won't get Call of Duty: Ghosts either, and certainly not Battlefield 4.
Nothing there says it can not handle it. Chances are someone did the math and developing for the WiiU and sales return would not even out.
Last year's Madden on the Wii U did not have the updated Infinity Engine because the Wii U couldn't run it.