Army of Two: The 40th Day, is headed to the crowded Q1 2010 quarter, specifically January 12 in the US and January 8 in Europe. It's a good time to release a game, really. Look at every one of these other games doing the same thing!
The press release also mentions a pre-order bonus for the game in "Extraction," a multiplayer mode available to those who pre-order The 40th Day. Everyone else will gain access one month later.