To celebrate the launch of Call of Duty®: Ghosts, we’re turning on our Launch Double XP Weekend tomorrow. From Friday, November 8th (6pm GMT) through Monday, November 11th (6pm GMT), players on all platforms will earn twice the amount of XP on all of their Multiplayer actions.
For more information, head over to our Double XP Launch Weekend FAQ.
Also, for players thinking about upgrading to the next-gen platforms, they can play now and upgrade later. All of their Multiplayer XP, stats and achievements earned on current-gen Call of Duty: Ghosts will follow them to the next-gen when they upgrade within console family. Learn more over at our next-gen upgrade page.
Official Source: http://community.callofduty.com/community/call_of_duty/english/ghosts/blog/2013/09/16/call-of-duty-ghosts-seamless-next-gen-upgrade-plans#.Unv2lpRaaP4