Terrible prediction, based on nothing.
Worst case scenario it would be a cross console game like Twilight Princess, because its already been annonced for Wii U.
But these predictions that Wii U is gonna be discontinued and replaced with a new console are completely ridiculous. Nintendo has never done that, not even with the gamecube. I'm also sure they have SEGA's example still fresh on their minds. The Wii U is here to stay, just like the Vita. But while Sony doesnt seem to care very much about seriously supporting it, Nintendo is going to support the Wii U.
Seriously... just for X the console is worth getting. When you add Zelda and many other games even better. No, its not gonna be many peoples main console, but as a secondary one... it sure delivers. Lots of quality exclusives.