The main thing is that Imoen is not also a recurring companion!
Ha, with these kinds of mental gymnastics, never say never.
Leucrotta, I'm still not sure what to make of the MtG cards, there are a lot of ways to take the canon in general that have been discussed enough around here. I'm willing to believe that Abdel Adrian is a convienent figure from WotC's canon that they'll use in place of the supposed MC for that story. They like to say that every table has it's own canon, so Abdel is just the one you'll find in Seattle.
Of course that's also why the question of the Bhaalspawn is so interesting in the lead up to BG3. I'd be willing to bet that nowhere in the game is the name Abdel Adrian uttered. We already have a book in the EA, talking about the Bhaalspawn Crisis which dances around the issue, and I think that except for a few important NPCs, that's how most of the world will view the previous games.