Completely accurate and important opinions of the various choices:
Maya obviously needs to make an appearance. We've just taken her to the palace, and Karder is going to do stuff, and we will want to see that.
Yuki on her own is not particularly tempting, but she has great opportunities as supporting character for Maya. I'd enjoy Yuki showing up again once Maya is big with child -- how will Yuki react to becoming a grandmother??
Lilan and
Zuri are both characters I really liked, but their stories reached natural conclusions. With such a huge cast we need to be able to let characters permanently leave the stage, and they are both good candidates for this. (Although a "cameo" that let us see them pregnant would be tempting..).
Mirina on the other hand was left more open ended. Bringing her (plus her son) back would let us see how their relationship turned out, and has the potential for some very interesing scenes.
We've seen a lot of
Gaal and
Izmi in their quest, but they are seriously hot. For me, the main reason for bringing them back is that Vae Victis hasn't really "earned" it's bestiality tag yet. If we see them, let them bring their wolves.
Arzu has potential as a character with a more aggressive sexuality, but it is not too obvious to me what to do with her. If Doorknob has some inspiration, I wanna see it happen, but I don't think her return should be forced.
Lady Zuma was a decent antagonist, but I think she played her part.
The
arena fighters offered some nice variety, and I definitely would want to see a she-orc-berserker again. But reusing these specific characters might not be worth the hassle that then killing in the fight becomes problematic.
I had almost forgotten the
Thick Azz Thieves, and just who they were while writing (I didnt play the quest again in the newest update, so it has been a long time). But for them, too, I feel we left them in a good place - full of goblin dick.
Darni still don't remember