Yes, I also thing that the tadpole will be a short-term concern (like collars in OS2). But as it is know, I don't really like Illithids as a central antagonists, they are way to alien for my liking. With previous villains, you could somewhat relate to them, understand where they are coming from. They also had a lot of mystery around them (huge, ironclad figure or a mysterious masked mage in a hidden prison), and were plotting grand schemes, which you were slowly unfolding. Here you have some tentacle monsters with immense superiority complex launching out a big scale invasion out of the blue. Hope there is much more to it.
Fan favourite, guaranteed to be there.
Canonicaly lost his powers, got turned into woman and was forced to work as a bar maid (lel). Would require some retconning.
Would like to see him back. Was actually feeling bad for the guy in Throne of Bhaal.
Personal fan favourite. He will be back, unless monkey smuggling life caught up with him.
Never liked her, too much emotional baggage.