New Borderland 2 details have been revealed in US magazine Game Informer (revealed via Gematsu).
Like its predecessor, Borderlands 2 supports four-player co-op, but the protagonists from the first game will only appear as NPCs.
Furthermore, that squat, gruff looking chap we saw on the cover of Game Informer last week now has a name. He's called Salvador, the Gunzerker, and he's capable of wielding any weapon in the game.
Another change is inclusion of dynamic story missions, in which the story will shape to fit your success or failure.
A new element, Eridium, will also be present. It's not a weapon, but can be combined with guns and vehicles to improve their stats. And it's also used as a form of currency.
Enemies also promise to be more varied and more intelligent.
If you got attached to a particular weapon in the first game, it's time to say a tearful goodbye. Gearbox is scrapping all the weapons from the first game in favour of a new-look arsenal.
Borderlands 2 will be on display at Gamescom 2011 in Germany later this month from August 17 - August 21. IGN will be there, so we'll keep you informed.