I was really looking forward to this game, but having recently played Homeworld a lot, I'm not so sure that StarCraft is the alpha and omega of space strategy games anymore.
I wouldn't really call StarCraft a "space strategy" game in the same way that Homeworld is. Despite having "Star" in the name, you never get too far away from the ground... the basic mechanics are very much a traditional RTS. Homeworld is, of course, a bit different.