4 New maps are set to be released on April 3rd for 800 MS Points ($10) as stated by 402, IAMfourzerotwo.com and Microsoft, Xbox.com.
You can view all 4 maps with video at the following url:
http://media.xbox360.ign.com/media/902/902590/vids_1.html.
The new maps are Creek Kill, Killhouse, Chinatown and Broadcast. Chinatown is a remake of Carentan from not only mine and Diallo’s days but any other’s that played Call of Duty 2.