Scuttlebutt going back to the summer had suggested that 2K Games would offer all of Borderlands 2's downloadable content extensions in a "season pass" offered at a package discount. Well, that's now confirmed. Rumor went around earlier today that $30 would buy up all four planned releases, and Gearbox confirmed it earlier this evening to Kotaku.
We've been told to expect more official details later—PAX coming up this weekend would seem to be timely—but yes, those with heartier appetites for this game can get a discount by locking in their commitment ahead of time.
Borderlands 2 Season Pass Announced [NeoGAF]