On the third of December, Premium Members can avail of the new ‘China Rising expansion pack’.
DICE had actually updated the game’s Premium Calendar in light of the game’s release, confirming when the first DLC bundle will be available.
‘China Rising expansion pack’ is the first of five planned expansion packs and this pack includes four additional maps set across the Chinese mainland, new vehicles and equipment.
When the Premium Membership service was first announced, it was explained that anyone who took advantage of the subscription would not only receive all the Battlefield 4 DLC and Expansion Packs at no additional cost, they’d also get them two weeks early compared to normal players.
So, while it isn’t confirmed, this suggests non-Premium players should be able to buy the Expansion on December 17.
Source: IGN