GameStop has a listing for an Aliens: Colonial Marines Season Pass, an unannounced collection of four upcoming DLC packs for Gearbox Software's upcoming shooter (thanks Polygon). Here's the description:

Hungry for more Aliens: Colonial Marines? Purchase the Aliens: Colonial Marines Season Pass and get access to four downloadable content packages at a 33% discount! All add-on content packs are scheduled to be released from March through to summer 2013. The Aliens: Colonial Marines Season Pass will give you access to campaign content, additional multiplayer maps, new modes, character customization and more!