I'm a huge fan of samurai ish but I wouldn't want to see an extended arc on a samurai island...too one dimensional. I love OP because of the multiple unique DF powers. If they go to the samurai island, I would hope it's a short bit like the dueling giants one. Zoro picking up the fire sword techniques would be ill.
Word, I shoulda read a better translation. The one I read was really strange with the wording. Made it sound like Luffy said "alright let's go get Shanks" whereas Law's Kaido comment was really vague.
I wouldn't mind that though, a ton of DF fruit users coming at these cats and Doflamingo tie-ins seem pretty obvious. I also wouldn't mind an arc focusing on where the hell Law's crew is instead. And there's still the mystery man floating right by punk hazard...tha's gotta be something.
I don't know, Oda been foreshadowing a Wano Country arc for a minute. The island's been mentioned multiple times and several characters we've seen were from Wano, including Ryuma (dude Zoro fought at Thriller Bark).
Wano Country - The One Piece Wiki - Manga, Anime, Pirates, Marines, Treasure, Devil Fruits, and more
According to Brook, Wano isn't affiliated with the World Government and the Samurai are so strong that the Marines don't even go near there.
I think a Wano Arc would have potential, I'd bet there are swordsmen there who can actually challenge Zoro. Plus I'm sure the samurai and his son need to go home. My guess is they go to Wano, and DoFla sends some more crew members after them (or goes himself).