Tiny Tina’s Wonderlands has multiple DLC packages. You can purchase them separately or as a bundle through the Season Pass. Each DLC has you going through multiple dungeons, similar to the Chaos Chambers, and completing various tasks. At the end of each DLC, you will encounter an evolving Boss as each DLC has 4 stages and the final boss will become more difficult with each run.
There are currently 4 DLC announced by Gearbox Software and the fourth DLC will also include a new playable class.
Table of contents
Defeat the old god Chums!
Defeat Imelda, the Sand Witch!
Defeat Fyodor the Soul Warden!
Defeat Redmourne the Trivern!
The new playable class is called Blightcaller and is part of DLC 4 Shattering Spectreglass.