plus a cash-back or credit bonus if you know where to buy
Just after the BF4 gameplay trailer & details released, some retailers are already offering preorder deals. All offer game with the Premium Expansion Pack, which presumably will include additional maps and DLC. The only stand out offer beyond that is Green Man Gaming, which offers Battlefield 4 with a bonus $10 credit or $7 cash back along with the Premium Expansion Pack. If you choose cash back it essentially makes the preorder $53.