Hey... I'm currently writing a special two part 'episode' to end Act 2 on, involving multiverse shenanigans. How would you feel about your Astarion and Anor making a brief cameo appearance? I'm seeing how many other writers I can get involved.
Basic premise is that Fenrir has a vault similar to Ashara's pocket dimension where he keeps all his treasures.
While he was gearing up the team for whatever awaits them in Baldur’s Gate, he accidentally reanimates a certain Hand from a certain Litch... the hand makes an interdimentional portal and escapes into an unknown version of Baldur’s Gate.
Ashara, Astarion and Karlach have to go get it back and end up hopping from universe to universe, meeting various versions of the team. They eventually end up at the end of the events of the BG3 D&D session the cast recently did.