A few thoughts:
1.
Thinking along the lines of invaders, Would it be possible to have groups of 1-5 "adventurers" invade? Decent skills, equipment, possibly trapavoid, randomised race or stereotype (Elf Archer, Gnome with clockwork pants, etc) kinda thing?
I can see Adventurers attacking the Warlocks, Orcs, and generally anyone with enough cash loot to wash away their morals.
Would there be a way to include them as one of the presets for a races ambushes? (Elf Bladedancers, Archers and War Animal types spring to mind)
2.
Naga! Really looking forward to this race, although its not the priority.
3.
I'd really like to see the Warlocks personalities changed to introverted narcissists, or to have them inclined to be that sort of personality.
4. A happiness building for Warlocks, linked to the narcissistic tendencies above using up the prisoners to make a Warlock happy. A prisoner keep complimenting a warlock, under torture. Say the wrong thing, and get punished. Prisoner eventually dies (warlock runs reaction, using up the prisoner) and Warlock gets a good thought "Complimented by prisoner" or similar.