I'm not the first to say it, but one of the last. SC2 is going to suck.
SC is a good game now, and why would they really need to change it? New graphics? If you want 3D graphics, play every game out there. Want 2d graphics, play SC. SC is single, oldschool and works. Until SC becomes so outdated then I do not believe a SC2 is in order.
As for being the SCG junkie, I didn't believe in the story line I wanted to see SC up close and personal. And I was quite disappointed when I saw them taken the older "darker" graphics and went for the blocky square looking halo graphics. SC is meant to be spacey and dark. Not dark like Diablo dark, but cold and void.