Project "Hydra" is Blizzard next-gen MMORPG which will be based on Starcraft universe.

Some may argue that why wouldn't it be diablo mmorpg, well it won't and thats for two good reasons:

1- Blizzard usually prepares the lunch of its new MMORPG by releasing a refreshed strategy version of the series, and that was the case with warcraft as warcraft3 RTS was released first (after years of discontinuity of the series) then followed by warcraft MMORPG.

2- Diablo MMORPG won't add "that much" of new elements and playstyle other than what is already existed in WoW (demons-evil races & classes..etc all exist in wow ), on the other Starecraft MMORPG would be whole new experience with its High-tech galaxies and atmosphere which no where like WoW (except draenei teh alienz!).