Anfebious on 17 January 2014
Dropping support for the console in 2016 will make it impossible for the Wii U to reach GC levels, not that it matters though as it's still a horrible number.
I think we could see their next system at the end of 2017 though.
"I've Underestimated the Horse Power from Mario Kart 8, I'll Never Doubt the WiiU's Engine Again"
