I wonder if Sanji runs into Sasaki or Who’s who ?
The only Flying Six who still moving right now is just Who'who. And Zoro dealing with the 500 gifters.
So, Sanji might encounter Who'who.
I mean, both of them had many similarities. (Cigars, having interest on women, Black attire).
And if he ate Sabertooth DF or Black Panther DF, thats mean he use "Speed" as his powers, which is similar to Sanji.:smithnie: