Ending the Xbox Live Daily Holiday deals is the expected deal of BF1943 for 50% off at 560 Ms Points (usually 1200 points) and confirmed by the EA twitter (http://twitter.com/OfficialBF1943/status/7211988347) This will go live on the Dec 31st around noon.
Also as a possible double deal (no official confirmation yet on whether the daily deal affects it) is EA's deal of 800 points back after purchasing 3 qualifying titles (http://www.ea.com/news/xbox-live-holiday-discounts) . The best deal in this case would be BF1943 for 560 points and the 2 Mass Effect DLC's for 400 points each, after the rebate however would mean the whole lot would only be 560 points so basically getting the Mass Effect DLC free, probably the biggest bargain combo on XBL over the holidays.
"Battlefield 1943 is a multiplayer-only game that lets you enjoy the thrills of Pacific WW2 battles! Pick your path - be it as a rifleman, a steel fisted tank commander, or ace fighter pilot dog fighting to protect the skies. Play as a lone wolf or with your friends, coordinating to turn the tide of battle. This game requires the Xbox 360 hard drive for storage. There are no refunds for this item. Multiplayer only."