It largely circled back to where it started, at least for Cass.
Not at all! Cassian has undergone a tremendous conversion. Whereas he went with Luthen out of desperation and took part in the Aldahni mission for money, now he’s preparing for action by listening to Nevik’s manifesto and joining Luthen willingly, dissatisfied with any life but one of full commitment to the cause. He is a changed man.