The more I see of these Starcraft 2 screens, the more I'm convinced this is going to be the almost the exact same game I played ten years ago. Just with greener greens and purpler purples. And you know, for 99% of games, that would be a criticism. But for Starcraft? It gets a free pass.
@Jaysius: So you really don't know much about the new game, then? Because this isn't just a new coat of paint, here, with some slightly new units. This is a true-3D Starcraft that takes advantage of being a 3D space for more than just camera rotation.
You now have units that can jump through different elevations and you have units that can step right over fortifications, to name a single example of how SC2 will be radically different than SC. Whole new strategies will be required to play the game, and Blizzard hasn't even revealed all the details, yet. The change to the Protoss, for example, with their new power distribution and teleportation systems, will mark a significant march forward for the franchise.
And this is merely based on limited information from months ago. There's no telling what Blizzard is holding back. The idea that SC2 is just going to be SC with nicer graphics only works if you ignore everything they've shown so far.