Yesterday EA announced that Battlefield 4 will launch on October 29 across PC, PS3 and Xbox 360 (dates for PS4 and Xbox One will be revealed when we now their launch dates), however for the UK November 1 will be the release date (no worldwide release).
The customary pre-order bonus is a DLC pack called China Rising and feature four extra multiplayer maps:
"Fight for dominance across the vast and majestic Chinese mainland in four massive maps, using all-new vehicles and high-tech military equipment."