Since AA and UA are different personalities... I can see why they might have to split time between them, and we get spawn lines with AA still, and maybe even AA lines with spawn Astarion (looking at the reaction to Durge's Orin duel). Like the lines after AA's new kisses are spawn Astarion. Why doesn't AA get his own lines for after the kiss? Although... I'm worried we'll get something insulting. So AA gets all this work to please people who don't like AA and disappoint actual AA fans. Spawn Astarion is clearly on the backburner, but hopefully not for too long.
Suggestions:
1. Fix AA's new kisses 2. Give AA good post kiss lines (try not to insult us with overt abusive lines, try to stay in character for AA, hmm?) 3. Put some work into spawn Astarion so he doesn't feel so neglected 4. Get rid of the "You're my favorite line" for AA (he doesn't even have other spawn yet so this line just makes you scratch your head)