This is not a fake, it seems, as Game Informer accidently spoiled the next Assassins Creed game, Assassins Creed 3, which takes place during the Revolutionary War (Washington is in the picture with him). In my opinion, the fact that the player is still in assassins clothing, during this time, is silly.
http://kotaku.com/5889536/game-informer-accidentally-leaks-another-assassins-creed-iii-image
