Having only just released in North America today, xboxresource.com/category.php?...
's first lot of DLC has already been confirmed - it will set you back 800MSP and is said to be arriving this spring... here's more info on it
The Gun Sonata pack, as it is known, offers three new maps for the Anarchy multiplayer mode - Sewers of Stygia, Hotel Elysium and Villa. The DLC also includes two new Echo mode maps called Crash Site, where Final Echo soldiers must deal with the ramifications of their crashed ship, and Guns of Stygia, in which a captive commando escapes from an enemy prison.
The DLC also adds two new enhancements for the Leash, the Flamingo and the Pulp, allowing for new skillshots.