According to a PDF that was posted on NeoGaf, Slightly Mad Studios (Project Cars) are developing the game Biker Bash for the Wii U as well as other consoles. The PDF document describes the game as a:
bike racing game that combines classic gameplay from titles like Road Rash/MotorStorm with modern fighting mechanics from Street Fighter IV/Fight Night and drags it kicking and screaming into the 21st Century with next-gen graphics, gameplay, and social features… all at a downloadable price point.
The game will supposedly have local (split screen) and online multiplayer gameplay. There has been no official confirmation as of yet.