D3 has either long been scrapped, or been in secret production for the last eight years. The last I heard, Vivendi forced Blizzard to scrap Blizzard North (the developing team of DII), and the team was assigned either to help develop new Blizzard games, or they simply left (Hellgate London). I had also heard that Blizzard had re-hired a bunch of competent MMORPG makers, and are working on some secret game, but whatever that is, your guess is as good as mine.

Starcraft 2 will never come out.