Optimistic prediction for a change"When they released the Wii a few years ago, I don't think developers--and Nintendo--anticipated how big it would become. I think this is going to be the case with the Wii U too," said Ubisoft's Brunier. "Touchscreen interfaces are so common to everyone right now, that having this as part of a gaming platform is really going to get Wii U further than Wii got."
http://www.fastcompany.com/3000097/nintendos-wii-u-gamepad-transforms-tablet