StarCraft II Interview on VideoGamer.com recaps a conversation with Blizzard cofounder Frank Pearce about the RTS sequel that took place at the Games Convention in Leipzig. They extract three of the most salient bits, one being the chance of console StarCraft II 'very close to zero', another that they still can't predict a release date (stop the presses!), and the perhaps counterintuitive thought that Blizzard's success with World of Warcraft makes a StarCraft MMO "difficult", though it doesn't seem that they are ruling anything out:

The StarCraft universe is really rich, and it's got a lot of cool stuff in it that could be leveraged for any number of different genres. A big factor would be what the development teams want to work on. When the StarCraft II team is done with StarCraft II, a factor is what they want to work on next, because the development teams plays a big role in deciding what they're going to do. So if there was a development team that was really passionate about leveraging the StarCraft universe for a different genre then that's something we would seriously consider.