As we know what Kuzan’s character arc is about, his character arc will end with success, and I believe it aligned with taking revenge for Ohara and protecting Nico Robin from more evil.
This why he joined the Blackbeard Pirates for 2 reasons:
- Blackbeard is close to finding out valuable informations. Kuzan could get his hands on those informations and give them Luffy/Robin later on.
- Blackbeard plans to attack the navy and this would be beneficial for the Ohara revenge plot.
Everything makes more sense the deeper we go into this. Now we know why Kuzan had a reason to chase the Straw Hats literally onto the Paradise. And following up that we learned about Nico Robin. Back then Oda knew where he would go with that character. In the end Kuzan is the key to pass a certain better justice onto the new generation, because his justice might be the closest one to how it used to be when there was a balance between the Ancient Kingdom and the other Kingdoms.
Back to the point where I said there is more to Jaguar D. Saul than we might have anticipated. He was to set to deflect the marines, and it gave me the impression that he might be partnered with someone else. I am touching the sensible topic of Monkey D. Dragon back then being affilated with the Navy or secrent agencies himself and this could have been the roots of creation of the Revolutionary Army. From what we know is that the Revolutionary Army was found 19-26 years ago, somewhere inbetween Luffy’s birth and Roger’s death. 22 years ago Ohara got destroyed so I think this could have been a point of interest for the Revolutionary back then even if they were in their beginnings, right?
So Saul mysteriously drifted to Ohara and we should ask us several questions:
- Why is he there in first line?
- If he knows about a Buster Call, why is he not warning everyone?
- Why is he acting all undercover?
- What is the Agenda?
One could say he is there to pay Olivia a visit. But other questions can easily be solved.
Saul must be a good actor infront of Robin, not sharing informations about himself, he obviously asked for a town to confirm for himself that he landed on Ohara.
This let me think that someone send him to Ohara because this certain someone got fed with the information of the Navy setting up a Buster Call on Ohara.
And yes hear me out, I believe that someone was Monkey D. Dragon. I believe Jaguar D. Saul was a member of the Revolutionaries and he was sent to this Kamikaze mission on Ohara. Maybe Kuma helped out in this case.
This justified why he did what he did. His main goal was saving children or important persons on Ohara. Sadly he and Akainu both crossed their ways undercover without knowing about each others undercover plans. I believe if both knew about each other’s undercover plan, then both would have teamed up to take down the Buster Call fleet.
I believe that this could be perfectly used to build up Kuzan into the Revolutionary Army plotline and have him backstab Blackbeard for eventually this moment.
Kuzan can pay Saul a tribute that way or even bring him back to life, it all depends but the story isn’t finished there, even if Saul might be finished arcwise.
In short: Kuzan could be another “survivor” from Ohara, his justice might be inspired by studies from Ohara and he was undercover to protect Ohara but he failed. Kuzan’s final character arc will be about failing and success and he is Nico Robin’s closest ally in the story!
*Theory by Rej