If they mean going back to WW2 this is a stupid idea. Yes, COD does need to go back to WW2, but not Sledgehammer, they are the new/good/different ones. Advanced Warfare was one of the best CODs (from a single player perspective) so make more of that. Infinity Ward and Treyarch are both old and stale and can't go much further into the future anyway. They should be the ones going back to WW2 or trying Vietnam or something.