Yeah, I'm changing my bets. I was somewhat confident that Sanji would get CoC after Gaban, but it's definitely being set-up as something he'd never get, and more of a gag (just like with women).
Having Sanji lust after it with comical faces is not how you foreshadow a huge character defining trait. It's like gag of him lusting over Nami or Robin, only to never really get either romantically, etc.
But maybe I'm wrong, we'll see. If it IS a foreshadowing of that, Oda is really being unfair/cheap with Sanji. It should be a massive, serious deal, not a lusting gag.