During this morning's Nintendo Direct, Tekken series producer Katsuhiro Harada announced a new title from Bandai Namco Games — Project Treasure for the Wii U.
However, details were scarce and barely anything was said about it. Harada did say that it is an upcoming free-to-play game for the Wii U. Four players will be able to get together for co-op to clear traps, route enemies and seize treasure.
More will be revealed in the near future.
Between this and Pokemon Shuffle, Nintendo announced a couple free to play games for the Wii U and 3DS.