So a lot of people seem to think that Luffy has already developed Adv CoC, but I really don't think that's the case so I'll try to break it down, keep in mind of course that it is just my opinion on how Wano is presented.
First and foremost, Conqueror's Coating has had an incredibly strong portrayal in the story. Only Yonkou tiers have shown to use it at will. And a proper Conqueror's Coating clash of top tiers always comes with a sky splitting. I think it's fair to say that Oda has reserved Conqueror's Coating for those who truly lie at the top. And right now Wano is definitely the point in the story where we see this happen live, but most importantly, it's showcased through the fight of Zoro vs King. And personally, I don't think Luffy is up there with these people yet.
Second point is that Zoro just learned how to control his Conqueror's Coating. So in this arc, thematically, using Conqueror's Coating is showcased to be a necessity to defeating Kaido, it is central to the theme of Wano of being the point in Zoro's journey were he can finally stand up to a Yonkou, and his newfound usage of CoC is directly correlated with that. Conqueror's Haki right now has everything to do with Zoro vs King, and nothing to do with Luffy. Having Luffy also awaken Conqueror's Coating this short of a time between Luffy and him would weaken Luffy's theme and struggle. We JUST learn this arc that Luffy has Conqueror's too, so I don't think we should precipitate ourselves already and claim that he also advanced it to the next level. Zoro deserves the spotlight and theme of having a superior Conqueror's Haki, and Luffy earning the exact same powerup would take away from this from a narrative standpoint.
And finally, the mammoth in the room, what the hell was Asura if not AdvCoC? Well, for starters, Kaido didn't comment on Luffy having coating, nor was he as shocked and glad as he was with Luffy awakening it, he simply commented on it being CoC. So right off the bat it can't be a proper display of Advanced CoC, it must've been a more dormant, lower level version of it. Which is actually something we've already seen happen with Luffy multiples times. Against Mr. 1, he was able to use Armament Haki and some argue that Observation as well, but wasn't able to use it at will, even against Enel. He displayed the potential of Haki, but not yet the ability to control and properly unleash it. And this might be what's happening here too.
So personally, will Luffy learn Adv CoC by the end of Wano? I don't think so. If we look at the fight between King and Zoro, Zoro coating his Conqueror's is crucial here since Kaido is a direct obstacle in him becoming Pirate King. To finally stand up to and defeat the strongest commander requires from Zoro the strongest will to conquer, it's a perfect thematic stepup for Zoro. For Luffy? Kaido doesn't really mean that much, he doesn't even consider himself a swordsmen.
I think it's more likely that Luffy will learn Conqueror's Coating against his fight with Shanks.
If I'm wrong though, I'll gladly take the L.
First and foremost, Conqueror's Coating has had an incredibly strong portrayal in the story. Only Yonkou tiers have shown to use it at will. And a proper Conqueror's Coating clash of top tiers always comes with a sky splitting. I think it's fair to say that Oda has reserved Conqueror's Coating for those who truly lie at the top. And right now Wano is definitely the point in the story where we see this happen live, but most importantly, it's showcased through the fight of Zoro vs King. And personally, I don't think Luffy is up there with these people yet.
Second point is that Zoro just learned how to control his Conqueror's Coating. So in this arc, thematically, using Conqueror's Coating is showcased to be a necessity to defeating Kaido, it is central to the theme of Wano of being the point in Zoro's journey were he can finally stand up to a Yonkou, and his newfound usage of CoC is directly correlated with that. Conqueror's Haki right now has everything to do with Zoro vs King, and nothing to do with Luffy. Having Luffy also awaken Conqueror's Coating this short of a time between Luffy and him would weaken Luffy's theme and struggle. We JUST learn this arc that Luffy has Conqueror's too, so I don't think we should precipitate ourselves already and claim that he also advanced it to the next level. Zoro deserves the spotlight and theme of having a superior Conqueror's Haki, and Luffy earning the exact same powerup would take away from this from a narrative standpoint.
And finally, the mammoth in the room, what the hell was Asura if not AdvCoC? Well, for starters, Kaido didn't comment on Luffy having coating, nor was he as shocked and glad as he was with Luffy awakening it, he simply commented on it being CoC. So right off the bat it can't be a proper display of Advanced CoC, it must've been a more dormant, lower level version of it. Which is actually something we've already seen happen with Luffy multiples times. Against Mr. 1, he was able to use Armament Haki and some argue that Observation as well, but wasn't able to use it at will, even against Enel. He displayed the potential of Haki, but not yet the ability to control and properly unleash it. And this might be what's happening here too.
So personally, will Luffy learn Adv CoC by the end of Wano? I don't think so. If we look at the fight between King and Zoro, Zoro coating his Conqueror's is crucial here since Kaido is a direct obstacle in him becoming Pirate King. To finally stand up to and defeat the strongest commander requires from Zoro the strongest will to conquer, it's a perfect thematic stepup for Zoro. For Luffy? Kaido doesn't really mean that much, he doesn't even consider himself a swordsmen.
I think it's more likely that Luffy will learn Conqueror's Coating against his fight with Shanks.
If I'm wrong though, I'll gladly take the L.