I think the WiiU is basically fucked, or at least in a very tough situation, because ir will compete not only with the next-gen systems, but with Ps3 and 360, those being actually very formidable adversaries, because of their library and prices.
Besides 1st party games there's little to no reason to buy a WiiU.
The Wii went against the Ps2, but the radically diferent controler made it prevail. This time both competitors have a motion alternative, making the distinction much harder.
I really hope it get more 3rd party games, but So far the future is very grim.