One letter difference isn't always enough to deter a lawsuit, but even if it were "Empires at War" I don't think it would be pursued. SFC2: EAW is basically a dead game anyway and has been nearly completely supplanted by Orion Pirates. If anyone tried to sue LucasArts because the names were too similar, it would just cause a lot of trouble for no real purpose. I can't really see anything good coming out of it.