User blog comment:Pedro9basket/Battlefield 3 Pre-orders matching Call of Duty: Black Ops sales/@comment-94.99.7.48-20110728134458/@comment-92.113.218.44-20110802050928

BF4 only 2 years?

Nah, that guy doesn't know DICE.

They'll first release an expansion pack (BtK), then continuosly patch the game, then release some more small content for everyone, then make a game/big expansion set in another era on the same engine, continuously patch BOTH of them, eventually release last patches for both of them and simultaneously develop Frostbite 3.0.

And they might mix in developing Mirror's Edge 2 into that.