Two new maps for Elite Premium members will be released on January 24, 2012. This is the first out of five DLC packs in the first three months of 2012. It was announced that there will be a total of 20 DLC packs in 9 months. That's a lot of stuff :)
But anyway, this DLC pack includes the maps, Liberation and Piazza.
Liberation is set in New York City, probably central park. This map is great for snipers as it is quite wide open. 402 says he likes playing domination on it because it is wide open.
The next map, Piazza, is set in a town on the coast of Italy. This map is big, but you will have there are many tight corridors. You will have to run around dodging bullets and killing people with your SMG.