Last night during GDC '12 press event, EA announced three upcoming DLCs for Battlefield 3!
Similar to Back to Karkand, they will add new maps, weapons, and in some cases new vehicles to use in the game.
The first DLC will be called Close Quarters and as you might guess from the name, we will have the ability to shoot through confined spaces a.k.a new Metro maps. : D Close Quarters will add to the game 10 new weapons, and 4 maps and the DLC will benefit from the "HD Destruction" from Back to Karkand -> lots of things will be destroyed!
More details should appear on 13th at battlefield.com/battlefield3/1/close-quarters.
The second DLC will be called Armored Kill and will focus on the tank BATTLE (YESSSSSSSSSSSSS). Battlefield 3: AK BF will give players the greatest maps in the BF game until now and a new vehicle that may be available for driving in the old maps. It will be released in the fall as it will have new tanks, ATV-s and "mobile artillery". There will be few maps, one of them will be "the largest in BF history."
The latest DLC will be called "End Game" but DICE keep quiet about what exactly will include.
Apart from that console gamers will get a unique (for a console shooter) option to run dedicated servers for Custom matches, through a rent-a-server program.
More information about DLC you can find in BF blog (click).
We are waiting for more info ...