[Azselendor]

Blizzard really isn't a company about innovating. They're a company about refinement. They take existing game concepts and refine it down.

Plus, when starcraft first went into development it looked very similar to warcraft in nearly every aspect leading to accusations it was just a warcraft in space mod. I'm sure in the 2-3 years blizzard takes to get this game up and running they'll have very different graphics and appearances for the game.