During a panel about eSports at the Valencia eSports Congress, Dustin Browder, Lead Designer on Starcraft II, was asked whether Blizzard had any plans for free to play in regards to their strategy behemoth. Free to play opens up the game to a huge number of people, and the more people that play, the more likely it is that you’ll unearth talent for your pro eSports scene.
Read more here:
Blizzard "looking at" the possibility of Starcraft II multiplayer going free to play - Starcraft