The Bastard’s Wound is coming on 9/7 for $15, along with a free patch that will expand the third act and offer additional voice acting.
As mentioned above, it will add a new area to the game (rather than be post-game content) which will have all sorts of new quests, NPC’s, and further expand the story of three of the companions (Lantry, Barik, and Verse - ironically the three I used in my play through, assuming I still have that save game laying around…?)