Headcanon That Post-game Astarion (Good Ending), Regardless Of Whether Or Not He Finds A Way To Cure

Headcanon that post-game Astarion (Good Ending), regardless of whether or not he finds a way to cure his vampirism, decides to spend the rest of his life trying to make amends for what Cazador made him do by devoting himself to investigating and stopping human trafficking and forced prostitution rings and networks, as well as either hunting down himself or creating a guild or organization that specifically hunts down vampires and specifically powerful vampire lords.

I can also see him maybe trying to come up with some sort of rehabilitation system for vampire spawn after their masters are destroyed. At the very least I can see Astarion giving them the option: either be good and don't kill any people or turn anybody, or be on the receiving end of a Daylight spell.

And I love this because this can work with either him finding a way to reverse his vampirism and become a normal Elf again; with his background as a magistrate he'd be able to tackle these issues with the entire judiciary system behind him, while also rooting out the corruption within the system itself.

But if he was stuck as a vampire for the rest of his existence then I can just as easily see him becoming some sort of night stalking vigilante, using his centuries of experience targeting potential victims and luring them into the darkness to instead protect potential victims, and instead hunting and stalking the monsters that would prey on them (**insert Batman and/or Angel joke here**).