Well y’know…. If you choose to kill him in Awakenings he still shows up alive and relatively well in Dragon Age 2. Anders is a hard man to kill and I don’t think Justice would give up the fight so easily, either.
Maybe he’ll come back as a zombie in 3. 8D Perhaps Anders finally dies but Justice/Vengeance doesn’t die so he inhabits Anders rotting corpse. It’s not like he hasn’t inhabited rotting corpses before. But I don’t think he should be a companion in that case, instead… He’d be a boss fight. Yep, that’d be cool.
I’m biased, though. I just want to see more of Anders. He’s such a woobie even though I am 99% certain that he’s secretly evil and not just “a little mixed up”. But I always like evil characters best.
The mages had sought to usurp Heaven. But instead, they destroyed it. They were cast out, twisted and cursed by their own corruption.