Full details of this patch are available at and further updates are in the works. A recent update addresses many of the issues brought to our attention by the community, including a fix to restore lost Badass Rank.
Here is what Gearbox said about the DLC: 'There are still two add-on campaigns scheduled to release as part of the Borderlands 2 Season Pass and we are really looking forward to sharing news about our third add-on campaign and other downloadable content soon. The trophies mention hunting side missions, discovering 'named locations' and the 'Fall of Nakayama'. There isn't much information that was revealed through the trophies though, other than the name of the DLC and the existence of trophies for completing some missions. Soon after the leak, Gearbox confirmed the DLC. The existence of Sir Hammerlock's Big Game Hunt was originally revealed via trophy names in a Borderlands 2 patch.