"SC2" after nine long years is basically its' parent game with a graphics overhaul, and it does look good. Why not use this as a chance to "re-invent the wheel" so to speak? Too many countries, like South Korea treat the original as a National passtime and to alter the gameplay would alienate this vast audience. That's what Blizzard no doubt thinks, and it makes sense. "Tomb Raider Anniversary" did this shamlessly, and to a degree got away with it. "Starcraft 2" will be super popular, and after watching lengthy gameplay videos and reading the developer interviews it all looks to be good. There will be new units, and with the 3D engine, new tactics will need to be formulated. This will be a hit, no doubt about it.