Gearbox panels at the various PAX conferences each year are usually good for at least one or two good bits of useful new information and/or delightful fan service. At last year's PAX Prime, it was when Randy Pitchford went full Oprah and gave everyone in the audience a free code good for one copy of Borderlands 2 upon its release. At this year's PAX East, the Borderlands 2 crew showed off a new character class that will come following the game's launch.
Dubbed the Mechromancer, this female character is essentially a cyborg. The full-breadth of her human/machine hybrid abilities aren't yet known, but it was stated that she would be able to control a large robot named D374-TP (which translates to "Deathtrap").
This new class won't be day one DLC. In fact, it hasn't even been fully developed yet. Gearbox showed off some concept art for the character, but beyond that wouldn't commit to a specific release day or price beyond "post-launch" and "comparable" to other, similar DLC.
If you're looking for something a tad more substantial than the usual dangled tidbits from industry panels, our man Jeff got himself an extended look at Borderlands 2 at the show, which you can read all about right here.