Rumor: Call of Duty: Black Ops II Uprising DLC Coming
A rumor has surfaced purporting that this month Activision will release a Call of Duty: Black Ops II DLC called Uprising.
Joystiq found a twitter post of promo material showing an April 16 release date for the DLC, which includes four new maps (Vertigo, Encore, Magma, and Studio), as well as a mode called Mob of the Dead.
For what it's worth, in the past retail materials have leaked early for the game's DLC (albeit from possibly different sources), so perhaps this is another in a string of early warnings.
If the April 16 date is correct, it likely applies to the Xbox 360 version of the game since that console enjoys an exclusive window on the game's DLC.