Yamato fighting Jack is highly unlikely now. Inu has no chance of beating Jack by himself. Either Neko comes to his senses and goes back to help Inu, or a non-Duke is beating Jack. Maybe Oda actually pulls off Jinbe vs Jack? I can’t think of anyone else who could fight him unless Luffy one shots him
If Yamato have a DF do you think Kaido gave it to her ? I mean she never left Wano and spent her live cuffed (with seastone probably) that would be interesting for their "relationship" cuz maybe Kaido wanted somehow her daughter to be strong and """Independent""" i mean he even calls her "son" which might imply that Kaido is a psychopath or he cares for her somehow
I have a few important tasks (applications and some other preparations for a Masters (hopefully beginning Q1 2022)) to deal with in the near future, so after the chapter drops, I'll probably take a break from public posting in order to reclaim some time.
I intend to be back in a few weeks after I'm done with that.