Just watched the new trailer for the Back To Karkand expansion pack that's coming this December. Wow.
It will feature updated versions of the classic maps Strike at Karkand, Sharqi Peninsula, Gulf of Oman, and Wake Island.
Blues News - should let you input age check for video (no sign up necessary)
Battlefield 3: Back to Karkand Teaser Trailer - 1080p HD! Might need you to sign in with your google mail a/c...
Thanks to e102gamma for previous link to Blues. Hadn't been there in a long time.