The fourth Headhunters pack, Mad Moxxi And The Wedding Day Massacre, is centered on a marriage between the Hodunk and Zaford families from Borderlands 2. The main theme this go around is love. With the main quest line consisting of finding ingredients to make a love potion for Moxxi. This is so that the families can be wedded with as little bloodshed as possible.
Of course I am assuming like the last Headhunter packs the Boss battle and new skins will be where the meat of the pack is. It is also interesting to see what kind of new concepts Gearbox can add with this go around for Borderlands 2. February 11th 2014 is the release date for the upcoming DLC and the price will be $2.99. Not only that, but there is still more DLC planned to come. The next Headhunters pack, Sir Hammerlock And The Son Of Crawmerax, is scheduled for release later this year.
Gearbox has done an amazing job with using DLC to extend the longevity to an already huge game and I can't wait to see what is next.