So, I'm gonna make a thread about this after the chapter comes out, but I really want to do it now, so, here we go.
I think we now know why Crocodile has not been shown using powerful Haki, nor having CoC, despite having the qualities of a King
It's because Crocodile... is a Queen
I've stated before, I believe Crocodile is a former Kuja who came to despise their culture once his sister, Tritoma, died of Love Sickness over Monkey D. Dragon. That's just the theory, though, the important part is if Crocodile was a lady.
The Ivankov moment in Impel Down. The disdain for Vivi being a powerless princess (I've also wondered if Crocodile is a former princess who's kingdom was destroyed).
I have Croc fighting Sanji and Smoker in Wano Act 4, and I think Croc's fight with Sanji will also involve Ivankov.
IMO, Crocodile is going to get CoC WHEN he is revealed to be a woman, and accepts himself.
Crocodile's lack of strong Haki always bothered the shit out of me because the dude is such a powerhouse/has such a powerful personality. THIS FINALLY MAKES SENSE.
It's the same shit Kuina went through, WHICH IS WHY Mihawk, Zoro's goal, is paired with Crocodile.
If Sanji's first fight in the series against a woman is Crocodile with CoC... WHOOHOOOOOOOOOOO