Is there precedence for this?
Wano isn’t a normal one piece arc I mean look at zoro on the roof. The main fight against yonko is a team fight so it isn’t a normal arc.
I keep reiterating that the only way you can say sanji won’t fight king is if zoro fights king. That’s the only thing you can say. Yamato is protecting momo and will save the scabbards. Yamato vs Jack. Chopper is causing queen trouble and drake is protecting chopper. So we getting drake vs queen.
That only leaves king vs sanji which makes sense for a multitude of reasons like king being able to show we is Called the wildfire.
In one piece when a character has a nickname we either now or see why
Jack the drought: zou
nami the cat burglar: she steals
straw hat luffy: he has a straw hat
Pirate hunter zoro: he was a bounty hunter
Black leg sanji: sanji wears black pants
Marco the Phoenix: his devil fruit power is a Phoenix
fire fist ace: he has a move called fire fist his most well known move
Red hair shanks: he has red hair
You see where I’m going with this? King is called the wildfire he can only show those capabilities against someone like sanji because sanji doesn’t have a devil fruit power to counter but remember the raid suit is fire proof