Sorry to get your hopes up, but other people have been waiting for this to happen too…. Well, a design team was actually formed and got together to build a “mod” for StarCraft based on the WarCraft 3 engine. Some are calling this StarCraft 2, however Blizzard has refrained from fomally answering any questions about the unofficial mod.

http://www.wc3campaigns.net/revolution/forum/

mubix