Tbh Viconia and Sarevok are together with Anomen the characters I could care the least in BG2.
I'm more mad that they made a canon Gorions Ward and that that is not my Gorions Ward, of course human male fighter.
Imo the NPCs are up for the grab, do with them, what you want, but leave the player characters alone.
And Viconia wasn't exactly nice in BG. She came from an evil goddess to another evil goddess and was brought up in an evil society.
And yeah, romance. I never romanced her because I prefer to play my own gender , so she stayed evil until I kicked her out for attacking my paladin, Keldorn.
The Viconia I see in BG3 is therefore exactly the Viconia I expect to see, so for me, everything is ok
And even if she was neutral because she was romanced ( which is not canon, look again on the Abdel Abomination timeline), she had a very evil upbringing, so left to her own device, chances are high, she will go back to it. Unlike Shadowheart, she never knew another life . You don't know, what will happen to Jaime Lannister, since the books aren't finished and probably never will be, he could go back to his selfish self for reasons, who knows.
And Sarevok - well he doesn't have the luxury of having lost his memory and connection to Bhaal,
like our Durge, so chances are, Bhaal has reclaimed him. Durge can be able to severe this connection permanently and get purged of the Bhaal elements with the help of Jergal, if they go down that route. If you do a Durge, who claims the Bhaalspawn power and then reject them in the end, as it is my understanding, Sarevok did, you will have a very unpleasant ending.
I put the last part into spoiler, since it has endspoilers for a certain background in BG3. And please correct me, if I'm wrong about Sarevok, it's been a while, since I played Throne of Bhaal, since I'm not a fan of that add-on .
I really don't want to be mean, I just wanted to point out, that depending on how you play in BG 1&2, this is exactly, how those two can turn out.
According to the cursed canon, Jaheira is dead and I'd rather deal with an evil Viconia and Sarevok, than have that happen.
