Wii U has, imo completely different market. They aim for a younger audience than the other two.
If X1 goes down I would expect its playerbase to move to either affordable PC gaming/steambox (if anti-sony) or just PS4 instead of Wii U.
Wii U drastically weaker than the PS4 so you would get low quality ports at best, possibly with some cut content. Unless ofcourse developers start gimping their games which I dont see happening.








