User blog comment:HanataSanchou/Chapter 919: Back To The Future/@comment-25161930-20181005181822/@comment-24850639-20181005221716

I like the thought of it being Hitetsu. It makes total sense to me for Oden to have an expert bladesmith in his employ. After all, a "scabbard" is essentially a sheath for a blade, and I wouldn't be the least bit surprised if it turns out that Hitetsu forged these 9 blades. Hitetsu did not allow Luffy to take his sword into town because he said it was incredibly famous, and he himself could not go into town either. Whether he can't go because people will recognize him or because people will recognize his sword is unclear, but it could be both since the reason he wears a mask is unclear as well. He stated he is waiting for someone, and that already seemed to be a dead giveaway that it was a person related to the resistance. Now we have even more evidence.

As far as Tama being Hiyori, I'm much more torn on that one.

FOR IT because.....

- Oda has been pretty on the nose with the Legend of Momotaro references. Momo embodies it due to this name, his ultimate mission to beat Kaido (who is clearly based on an Oni), and the climactic mission to Onigashima Island (real island from the story, even down to the design with the skull!). Tama seems to embody just about every other element of the story, from the kibi-dango making animals follow how her, to be-friending a dog (Komachiyo), a monkey (Baboonmaru), and a bird/pheasant (Tengu). It feels like Oda is subtly implying their fates are connected somehow.

- Toki taking steps to ensure Momo's safety but not Hiyori's makes zero sense. I know Momo was the heir due to being a boy and all, and Wano is very "traditional", but I severely doubt Toki loved Hiyori any less, let alone to the extent that she would allow her to die. I was gonna say Oda wouldn't kill a baby girl, but Big Mom's birthday party and Trafalgar Law's backstory would beg to differ. In either case, from what we could tell in that scene, Toki was perfectly capable of saving Hiyori too, and I'm hard-pressed to believe she wouldn't.

- Momo having met Roger, and Hiyori having met Ace would add a little poetic justice

- It makes perfect sense that she would go by a different name in order to avoid scrutiny from Orochi sympathizers

- Them remaining a similar age makes the time jump easier to digest. Hiyori's age isn't given, but due to what we can tell of her size, and the fact that she doesn't talk, it's slightly implied that Momo was older than her. It'll be a little weird if she's matured into a 20-something year old woman, and her "older" brother is stuck in the body of an 8-year old.

AGAINST IT because.....

- I like the thought of only some of the retainers going to the future, so that some could hang back and make sure that things are ready in 20 years. I think it'd be really cool if Hiyori was one of these people, and has trained herself to become an absolute BEAST over the past 2 decades. Lofty hopes I know, considering she's a female character, but if she did in fact survive, she should be just as fired up about taking down Kaido as Momo is.

- I'm not usually one for shipping, but Tama and Momo eventually being a couple that rules Wano together makes a boatload of sense for story purposes. Momo due to having the noble goal of opening the country up, and loving the people as his father did, and Tama for being someone who knows the tragedy and famine that the people endured better than almost anyone. Her power is kinda broken, so before this arc is over I anticipate her having played a major supporting role in Kaido's defeat. Maybe even bigger than Momo's. That can't work if they're siblings.