Update: The Best Buy display has been called into question, perhaps most notably because it misspells the word “February.”
However, this isn’t a matter of it being a Photoshop — the store confirmed the display’s existence, after all — but the display has been taken down by order of the store’s general manager, Joystiq reports. This wasn’t by request of Blizzard, but instead because a date hasn’t been announced and it was the store, not Blizzard, that commissioned the display be made.