GI.biz has an article with comments from Yves and Peter Moore: http://www.gamesindustry.biz/articles/2013-07-08-does-nintendo-stand-a-chance-this-holiday
Yves Guillemot, Chairman and CEO of Ubisoft, is typically one of the biggest proponents of new systems, but betting big on the Wii U didn't work out well for the company. ZombiU, one of the most popular launch titles for the system with players, was not profitable, he says. Not even close. As such, he says, there are no plans (or even desire) for a sequel.
It was, in fact, because of that game's performance that Ubisoft decided to make Rayman Legends a multiplatform game.
For EA, at least, it's the system's lack of a rich multiplayer environment that's one of the big concerns - especially for sports titles. (That's part of the reason Madden won't appear on the system this year.)
"The lack of online engagement that we see on Wii U [is troubling]," says Moore. "It's so integral to what we do. They're so small it's hardly worth running the servers. It seems like a box that's out of sync with the future of EA - which is one that gives a real social feel to our games. The Wii U feels like an offline experience right now."