Medal of Honor Warfighter is apparently EA's big holiday shooter this year, with a leaked European trailer indicating an October 23 launch date. The sequel to 2010's Medal of Honor is also being handled by EA's Danger Close studio, though DICE isn't picking up the multiplayer slack this time around. As October 23 is a Tuesday, it looks like that will also account for a US release date, but we've reached out to EA for clarification all the same.
Update: EA released the US trailer as well now, which shows October 23 as the release date too. So there's that!