Starting on January 27 (Europe and Asia January 28) you will be able to buy Ladz Hammerlock Pack on PS3, Xbox 360 and Steam.
And new playable character Aurelia will be available with new skill trees: Huntress, Cold Money and Contractual Aristocracy. Check more information here.
And watch also the trailer released today at PAX!
If you don't own Borderlands: The Pre-Sequel Season Pass but have the game alone then the price for you is $9.99. Or you could buy the Sason Pass for $29.99 which grants you access to all four add-ons.