I should bring my arguments from the chapter discussion thread I guess
*goes to copy paste*
Carrot has a lot of pride for Zou and fought off against Jack. Wano and Zou had been allies for ages, at least for Oden's rein, and i don't see how a mink would go against Inu or Neko.
And if Law was with Kaido he could have just set up Doffy without such an elaborate plan. I mean he worked all the way from Punkhazard to set up Doffy, and Kaido would have known Law did that then anyway without Strawhat involvement.
I mean, he approached this pirate alliance with the premise of taking down Kaido. (Granted it's gone a lot further than he planned). So if he's turned traitor and gone and sided with Kaido why did he even stay with Luffy guys? He could have ducked out ages ago.
Law's just looking sketch cus he's like "oh shit. We're really going to go fight Kaido!... it wasn't supposed to go this far, but now I'm here I guess this is what we have to do..."
This was all his idea in the 1st place. He would seriously just come up with an idea and then when the climax of the conditions he brought forth is about to happen he's going to break the alliance? What he's going to say "haha! Suckers! The alliance is over you've got Kaido on your own!"?
Law's in too deep with Luffy guys. Hell Luffy helped avenge Corazon for him!
And Law would betray that just cus the plan he came up with went a bit hinky?
He only planned to die when the deal went sideways and his plan to make Kaido get ride of Doffy failed.
Tinfoil hat time....
What if the traitor is Hiyori?
She's been in the country for 20 years, grew up there and at some point she was left all alone. Everyone else in the whole country was talking about how it's not possible there is a rebellion because everyone lost all hope. What if Hiyori lost hope as well? Her will and spirit could have been broken years ago when she was on her own and now she's conditioned just to survive.
She would have known about the ones who went forward in time, and she would have known who they would have turned to for help.
She might have changed her mind, after seeing how strong Strawhats were when they did the rescue of O-toko, but by then she had given the how to solve the riddle to Oricchi dude. (I mean if you knew the line under meant which port and how the ports look like animals you could probably figure out it's still the same kind of riddle).
A sword no one before had been able to actually master...