When a game sells as well as Borderlands 2 has it's only fair to give the fans what they want: another game in the series.
Borderlands 3 is already in the minds of Gearbox, the series' developer. During a video interview with Revision 3, Gearbox Lead Writer Anthony Burch was asked about whether or not the Borderlands series has any gas left in the tank, to which he replied:
The thing about game design is that it’s so fluid; things can just change all the time. You don’t want to get too specific, because then you’re like, ‘Oh, crap, I gotta write myself out of this hole that I thought would be a really cool idea two years ago.’ I could just Looper myself and punch myself in the dick for having stupid ideas.
He then added:
There are definitely some more general ideas I have for Borderlands 3 that I hope we get to see come to fruition.
What makes this so much more exciting is Borderlands 2's ~35+ hour journey is filled to the brim with witty writing and hilarious dialogue. It's such a leg up from games with similar style that you'd think Gearbox is exhausted. However, there are ways that the gameplay and world can be improved, and as long as the third game is as fun and colorful as the past two have there's no way Gearbox can lose.
In the meantime, look out for Mechromancer, a new character that will be available free to pre-orders or for $10 via DLC on October 16th.