Monolithic super-developer Blizzard has put out a casting call on their company website for a Lead 3D Character Artist and a Lead 3D Environment Artist to work on a "next-gen MMO." Is it World of Starcraft? Is it a Diablo MMO? Is it a completely new IP? Is it the mythical Hydra (which could be any one of the above)? We don't know.
Even though details are hidden behind the curtain, these job postings give outside observers a sense of the progress Blizzard has made on the mysterious project. This is probably the same project for which they hired a Lead Engine Programmer back in April or May, and it's safe to assume that they're about to move into the next phase of development -- building the game world (or worlds) and its inhabitants.
Now if only they'd clue us in on whether or not those inhabitants are Terran, Zerg and Protoss.