Speaking with Joystiq, Blizzard wouldn't confirm Starcraft 2, but said they are planning on making a huge announcement at the WWI. Starcraft 2 had previously been hinted by Blizzard's VP of business development. Obviously announcing Starcraft 2 in Korea is only appropriate, as matches are held in stadiums, carried on television and are practically a national sport. This way, Blizzard can announce the next WoW expansion at min-E3 and then save the Diablo 3 announcement for BlizzCon. So if sometime around May 19 you suddenly feel a disturbance in the force and millions of people screaming, that's just South Korea imploding from the news that Starcraft 2 is coming.