Wii U + logo
Mii U
Wii Fit U
Wii Sports U
Wii Music U
Wii Party U
Wii Play U
WiiWare U
Wii Balance Board U
Balance Wii Board U
Wii Wheel U
Wii Zapper U
Wii U Fit
Wii U Music
Wii U Party
Wii U Sports
Wii U Play
Wii U Ware
Wii U Balance Board
Balance Wii U Board
Wii U Wheel
Wii U Zapper
Wii Speak U
Wii U Speak
Shield Pose

This is by no means a confirmation of titles coming to the Wii U. Companies trademark a lot of names just in case they need them later.