Gears of War 3 will be getting a new DLC pack on March 27th. Costing 800 MSP, the Forces of Nature DLC will feature five maps, three of which are original (Artillery, Aftermath and Cove), Raven Down from Gears 1 and Jacinto from Gears 2.
There will also be some new character skins in the form of Commando Dom, Mechanic Baird, Savage Grenadier Elite and Savage Hunter. Guardian Mode makes an appearance, alongside seven new weapon skins, and ten additional achievements.
Source: Press Release