User blog comment:Kaido King of the Beasts/The Tenth Straw Hat/@comment-10543621-20150115000206

I personally don't think any of the current characters from Dressrossa should join. There are way too many new characters indepted to the Strawhats after the events of Dressrossa. For any of them to actually join the main crew would complicate things. For example, if Barty joins the main crew, what's gonna happen to his own crewmates? There were also plenty of other fighters that aided them, so I see that as unlikely.

If anything, there will be plenty of new alliances/tag-along crews, similar to the White-beard alliance crews, but I doubt there'd be a new member joining in the main crew here.

Violet may seem like a likely and good choice, but to be honest, I can't see her wanting to leave Dressrossa after finally having restored her home nation to normalcy and being reunited properly with her family. She would also have a sense of responsibility towards Dressrossa like how Vivi did to Alabasta. And to be honest, I highly doubt Oda will allow a female character who has responded to Sanji's advances to join the crew. That'd just be too good to be true for Sanji, and I'm sure Oda will never allow that. Poor chap is probably destined for more unfortunate occurences.

For me, I would prefer if the next arc is dedicated towards introducing a completely new character, and focuses on said character. An entire arc is usually more than enough to develop a character's background and bond with other characters in the crew. That's how it has been traditionally. All strawhat members were introduced in an arc and joined their crew in the same arc, or at least closely related arcs. I think chemistry can be easily build up with the right story-telling. Brook wasn't that much different when he first joined anyway.

Being a new character, I'd want something completely new and unique. The main draw of the Strawhat crew is their incredible diversity, and I'd want this diversity to continue. Hence, I propose the new character to be female, in agreement to others with regards to the overwhelming number of males. BUT in agreement with the idea that Sanji should not get the benefit of additional flirt-interest, I'm proposing a middle-aged, female fishmen with no devil fruit, taking the role of helmsmen/lookout. Being a fishmen, haki would be optional since fishmen karate also works against DF users.

Just like there are too many males in the group, there are also too many humans. Although Franky and Brook are not quite fully human, their official birth race is still human. I'd liket the crew to be a little more multi-racial. I want a female fishmen too because they're too rare. I don't remember seeing many female fishmen around. Even on fishmen island, the females tends to be mermaids and not fishmen. I'm sure there were random ones, but we need a proper female fishman character.

What about Jinbe? To be honest, I see Jinbe in the same light as other allies such as Barty. He should remain an ally and supporter rather than a core crew member. He too has his responsibilities to the Sun pirates. And unless the strawhats start functioning like massive crews like what the Yonkous have, where they absorb other crews into themselves and have various 'sub commanders', I don't see how characters like Barty and Jinbe should officially join the strawhats.