Annihilation will add five new maps, with 'Hangar 18,' 'Drive-In,' 'Silo,' and 'Hazard' for the regular multiplayer modes. Zombies mode takes a trip to 'Shangri-La,' which is described by Treyarch head Mark Lamia as "an exotic and mysterious map filled with deadly traps, dark secrets and innovative gameplay that will challenge even the most daring Zombie hunters."
As per Microsoft and Activision's exclusivity arrangement, it'll be released first for Xbox 360, on June 28. There's no word on when PC and PlayStation 3 editions will launch, but the last two Cod Blops DLC packs hit other platforms roughly a month later. Annihilation's price hasn't been confirmed yet either, but we can most probably expect it to be the regulation $15 (1200 Microsoft Points).
With Call of Duty: Modern Warfare 3 expected on November 8, this may be the last new content for Cod Blops.