DRK was fight club, or persona 4 if you prefer to face your true self. Later on you move to vigilanteism but that resolved with the realization that a DRK only going for a duty to protect is bad at what they're doing. Didn't play AST so can't speak there.

I don't see them returning to the Class -> Job well again but it would be appreciated and be a means to satisfy as many people as possible with Samurai.