Were they to do this, I would suggest a quest line that starts after all other major lines are completed. As an example, the quests lines in Rak’Tika from the two outposts unlock another where there is some back and forth between the two groups and the Ronan serpent. Upon completing this “finale” quest, title could be granted.

I wouldn’t care to include every single possible quest, just the major side story for that zone.