A chap who previously worked on Darksiders 2 didn't respond well to Nintendo's approach with the GamePad and Wii U.
Despite working on the game when employed at Vigil, Xander Davis wasn't able to work on the Wii U version "luckily". Davis was keen to raise his concerns at the studio about porting the game to Nintendo's new system. Despite being a skeptic on the GamePad interface/concept, he did not that "you have to do it right" when approaching the Wii U to justify "all the hassle and a $400 Xbox 360 seven years late".
Davis went onto to slate various aspects of the system and controller - despite having not tried it yet.
What I'm hearing from people who have actually played a Wii U as recently as a month ago, the games pretty much suck and the tablet is pretty much a complete gimmick.Kinect comes to mind. PlayStation Move comes to mind. Still tethered, not wireless. Maybe publishers can pull off something clever. But won't it just kind of be clever for a little bit, then not really worth your $60 dollars and just annoying afterwards? Motherf*cking Wii comes to mind.
But, sure, we'll have to wait and see. I can't comment on specifics. I can only speculate, but as a UI Designer applying experienced critical thinking to game mechanics UI and the Wii U tablet, none of it makes sense to me to truly add value to gamers, even if you try.