Coming from an VentureBeat interview with Ubisoft France manager Xavier Poix

GamesBeat: How many players can you get on the Wii U at once? Is it four or is it two…?

Poix: On the controller it’s just the one. One person. But you can still play with the four Wiimotes if you have four. So it adds up to five players.

 

I wouldn’t call this 100% confirmed because the wording is a little unclear. It just looks a little less likely we will be having two Game Pads on the Wii U.

Link