Publisher EA has confirmed that Battlefield 3's debut expansion pack will launch on PlayStation 3 as soon as December 6th. That's a week earlier than on other platforms, as promised by the publisher at launch.
The pack's comprised of four maps from previous Battlefield games, all remastered in Battlefield 3's uber-pretty Frostbite 2 engine.
If you purchased a Limited Edition version of Battlefield 3 at launch, then the pack yours for free. Everyone else will have to pay $15.