According to a Treyarch employee's CV, Call of Duty: Black Ops 2 could be arriving to the Wii U.
The LinkedIn profile of QA tester Randall Herman states that he's currently testing the shooter on "PS3 and Wii U, multiplayer testing while collaborating with team, ad hoc testing, and regression".
Publisher Activision has only confirmed a release for the sequel on the PS3, Xbox 360 and PC, and have yet to formally announce a Wii U version. The existence of Black Ops 2 for the Nintendo console has been rumored on several occasions, with UK magazine NGamer in particular saying a Wii U version is indeed in development.
Call of Duty: Black Ops 2 is due for a worldwide launch on November 13.