Space.com is reporting the name for the Space Shuttle's replacement is now "Orion". That'll be what they call the program and the manned part of the vehicle. Aviation Week earlier reported the boosters will be called "Ares", with Ares I being the SRB-based manned booster and Ares V being the later and much larger cargo hauler.
One can only hope that naming them brings them at least a little closer to reality.