As revealed during Sony's E3 press conference, PlayStation is now the new home of Call of Duty. The partnership starts off with the multiplayer beta launching first on the PS4 during August, but no specific date has been announced yet. Xbox One and PC users will have the chance to try out the MP beta at a later date.
The Xbox 360 and Xbox One have had higher priority with all DLC content since Modern Warfare 2, but from now on all future map packs will be debuting first on the PlayStation. The Xbox One and PC will be receiving their DLC content with a delay, most likely 30 days, like previously.
The final two Advanced Warfare map packs will be released first on the Xbox as scheduled.