Considering it's hundereds of years since BG2, sexiness is not what I missed about Viconia (I am also more used to polish dub), but there have been some complaints about how her and other BG1&2 cameo were portrayed.
I didn't like either of NPC versions of returning companions, and I found them puzzingly misrepresented, considering that I thought they did a good job with Jaheira and Minsc. I would be curious how it came to be that Viconia and S ended up filling roles that they did.