Studio believes Ghost's concept is still "perfectly viable".
Would be an 'overwhelming' and 'scary' thought, says co-founder.
Activision Vivendi mega-deal driven by Blizzard's MMO success.
Executive vice-president of product development Frank Pearce talks WoW 2, StarCraft 2 and Diablo 3.
Blizzard has cancelled the development of Starcraft: Ghost on the GameCube.