I'd like to see them actually tackle the morally complex ideas that they talk about on Talks Machina from time to time. And those things should be at least a bit uncomfortable because they aren't easy, well trod territory in media like the "we're outsiders, we're a found family, and I love you all" drum that has been a constant between both campaigns. I don't like when "morally complex" is used as a cover for them just playing the game like a standard group of murder hobos but wanting to elevate and justify the behavior after the fact, but if they actually want to go for something weird, I'd like to see it.
Nott is obviously a good person as we've seen from her behavior, but there's also some situations wherein the disconnect from her being socialized by goblins comes to the surface. Her having a skewed sense of morality would make sense to me. And that brings to mind questions like why she behaves like a goblin. Why would she eat like a rabid animal like she does? Why would she try to eat Frumpkin and want to eat raw rats if she was just a transformed halfling? She really went whole hog on method acting? Reincarnate doesn't turn you into a baby of another race, it turns you into an adult, so the timeline of her growing up, living amongst the goblins, being a torturer's apprentice, mothering a child, freeing Yezza, etc, etc but also being a halfling doesn't really square with her ingrained goblin-y behavior and the fact that her 5 year old son recognizes her appearance. How long was she living among them? When did these things happen? I guess she could have just been lying about everything.
She also doesn't have to literally be polymorphed into the dead mother to become a replacement for her. She could just want to be a halfling. Then we're diving into the dark, fucked up territory of a her becoming a stepparent *eerie music plays*