"During my demonstration of StarCraft: Ghost , an interesting slip-up by a Nihilistic representative may have confirmed what we've all been hoping for a long time now...that StarCraft 2 may very well be in development, or at least pre-production. What exactly did I hear? I was told that the storyline in StarCraft: Ghost picks up, "right after Brood War," and starts things, "that will continue later on in StarCraft 2."
This is of course not close to the final news we've all been waiting for, but maybe it can give us some more fuel to lay on the fire of hope..
WGTour - Source