Call of Duty: Ghosts' Season Pass includes four planned DLC packs and a bunch of bonuses, and if you pick one up before the end of May you'll be able to import it to a next-gen console when you make the jump.
The pass will eventually include Onslaught, Devastation, Invasion and Nemesis, which will provide a collection of maps, bonus weapons and the four episode Extinction experience.
The pass also includes stuff you can use immediately - the Team Leader Digital Pack, which features unique MP character head, weapon camo, reticle, player patch, player card and player background, and the Free Fall DLC map.
Buy your Season pass before May 31 and you cna bring it with you if you upgrade from PlayStation 3 to PS4 or Xbox 360 to Xbox One.
Interested? Activision offers more details via a Call of Duty: Ghosts Season Pass info page.