Reminder that Oda had drafts where Yamato was a two sword style swordswoman and just never went through with it for some reason
Still possible, but, at this point, I'm so frustrated with the character.
I do believe Momo/Sukiyaki will do some sword-forging together, though.
Since Momo has his Dragon form, now (still need to see the Hybrid, further proof Oda's going to drag us back to Wano for more mental torture), it's possible he can forge swords with Dragon Fire/Boro Breath, which would be really cool.
Since Sea Cloud is formed from Pyrobloin, a coniferous particle found in magma, mixing with sea water, I've long believed Seastone is formed from magma being mixed with sea water.
If this theory is correct, then Wano's Seastone forges, which we've never seen, would be located deep underground Mt. Fuji, with magma being mined and then cooled with sea water to forge Seastone.
We know from Vegapunk that Momo's Fruit is a copy of Kaido's, outside of its color. There might be a few differences, but, overall, I think it's the same Fruit.
Since Kaido's final attack, Flame Dragon Torch, is more or less him coating himself in magma, I wonder if Momo can use this technique, to form Seastone?
Momo/Sukiyaki forming Sea Stone blades for Yamato, or just swords in general for her, would be really cool, and would mean Oda still planned on two-sword Yamato, but introduced her with Kaido's weapon, to show her heritage/childhood/Kaido's control over Yamato.
Wouldn't be surprised if we got a flashback someday where Yamato loved swords growing up, and Kaido broke all of them to spite her for wanting to be a Samurai/Oden.