Gearbox boss Randy Pitchford has said the studio intends to release more campaign DLC for Borderlands 2.
"We did a season pass for Borderlands 2 and the season pass was like hey, if you buy the season pass we would be doing four campaign add-ons and you can buy all four of them for the price of three, if you buy upfront. So everyone was under the expectation that those would be the four DLCs and that's it.
"We are going to do more, we are going to do some other things. I don't have details exactly of it yet because were not ready to announce what the other things are, but when the next campaign DLC comes Assault On Dragon Keep not being the end of it.
"We got more stuff in the hopper that we're planning and getting pretty excited about. So if your a Borderlands 2 fan you don't have to be afraid that that's the end of it."
Pitchford also reportedly said Gearbox plans to develop an original IP for next-gen consoles, although he didn't offer any further details.
In February, publisher Take-Two claimed Borderlands 2 sales were approaching the six million milestone. It also released the Borderlands 2: Add-On Content Pack at retail, which features the game's first two expansion packs.