Doubt it will be changed, the whole point of playing Origin is RP. Thats why u have all different romances, can play civilized Laezel, evil Karlach or selfless Astarion etc. U are shaping your own experience as Origin, not replaying the same character arc thats presented in their companion stories. U are supposed to be fully aware of your condition and backstory, so then how do envision saving your partner if you dont fix your sunlight hypersensivity. Its up to the player what he's gonna do with the power after ascension, afaik in Origin there are no consort/spawn dialogues or cinematics. There are special dialogues however for Astarion Origin and romanced Karlach after ascension especially for RP. Making spawn a good ending in this scenario will render that part of the writing and RP moot. You have two tragic characters, for Karlach's engine theres no fix during the events of the game, Astarions' condition u can fix with Ascension, you can't expect to reach good ending with doomed romance while doing nothing to improve your characters' condition.
