I personally don't think it's farfetched for Yamato to actually have that passion to sail the seas outside of her love of Oden's freedom. I think that no matter what Yamato's future is she should fulfill her dream of adventuring the world. If she ends up with her own crew of allied Beast Pirates, Samurai, and potentially Minks she can be a guardian of Wano at the same time as well since she knows how to make Vivre cards as she made Ace's.
To say that she might change her mind with sailing with Luffy to help Wano is one thing, to say that she'll drop her dreams of sailing almost completely might be a step too far.
Images came from chapters 823 and 999.
I don't throw that possibility, it's completely possible.. just that for now, that "wonder for the sea" What Carrot is characterized with for example, is not that developped with Yamato beside this panel. Yamato is more enthousiast about the possible encounter she could make during her adventure.
Therefore I'll stay cautious about that possibility. Now, until the last few chapters there was no hint that Yamato could end up with a loyal crew.. but her encounter with Fuga shown that Yamato had ties even in her Dad's army, and that those friendship were strong enough to overpower her Dad's influence.
That's why I agree now.. a crew with Yamato as captain ould be possible.
Also I want to note something that I think a lot of people are forgetting.
At the end of wano.. either the alliance is beaten, either Big Mom and Kaido are
BOTH technically defeated. This is taking us back to a tweet a made a long time ago about the Big Mom's pirates:
And.. this leads me to one of the most important narrative parralel of the entire Yonko Saga:
I've spoke about this before: If you look closely to the whole Yonko Saga.. you will notice a specific theme pop out:
Families: the relationship between a parent and a child. You will find this theme milked from Zou, all the way to the last chapter of Wano if Oda stays consistant. With that theme, Oda created a lot of beautiful stories : Sanji and the relationship to his dad and family, Pudding and her mother, Oden and his children, The nine Scabbard and Oden.. all the way to the alliance of the Big Mom pirate and the Beast pirates which narratively represent the "alliance" between a father and a mother"..
But among all those stories, there are two specific characters that are popping out, not only by their relationship to the specific theme quoted earlier, but by their relationship and place in the narration.
Katakuri & Yamato, two childrens, product of an abusive relationship and placed specifically in the pass of Luffy.
Those two are similar until their very place into the story. Indeed, both character are introduced strangely late, right along the midpoint of the second act of the story. On the same principle, their strenght is directly presented. Those two parameters puts them directly at an advantage in the mind of the readers making them "pop out" out of all the others great yet numbered characters.
Remember your first impression of Katakuri.. and Yamato.. Strangely similar isn't it?
That's logical, both character are incarnating the failed result of a bad choice of parenting.. but most of all.. they are both representing
Hype and
Hope.
While there might be strong commanders in both crew.. Both the Big Mom pirates
and the Beast Pirate are looking up to Katakuri and Yamato respectively.
There are reason to believe that with Kaido being defeated.. the flying six will implode (if they are not arrested before that) those are free spirits, without Kaido, those spirits will flee the F*** out. Which will leave on Kaido's side, the entire army AND some of the numbers. With the army under the influence of Tama and Yamato having a great deal of influence over them.. Yamato would be the logical heir to the responsibility over the beast Pirates.
On Big Mom's side on the other end, a defeat would mean a great deal for the families and surely a sission between Perospero/Smoothie and the others. Plus, there are reasons to believe that without Big Mom, Katakuri will inherite the responsibility of the Big Mom pirates.
This would leave us with two childs a boy and a girl.. transformed by Luffy's action.. ending up with the responsibility of the two biggest armies of the new world.
So.. when you ask me if Yamato will join Luffy on his ship.. I'm fairly cautious.. but one thing I'm sure of, is that she will have a future in Wano..
Note that this doesn't negate the possibility of seeing Yamato and Katakuri show up at the very end of the story.. for the big battle.