According to Yahoo Japan, the Wii U could win, later this year, a game based on the world renowned Dragon Ball franchise. The project is being called for now "Dragon Ball Game Project Age 2013" and address classic production and its sequels Z and GT.
In addition there will be a mode called "Dragon Rush Boss Battle", 100 playable characters and 30 arenas available. But all the information is still just rumors and nothing has been confirmed by any producer.
Source: Eurogamer (em Português)