User blog comment:Portgas D.Eros/Zoro and Sanji/@comment-3097081-20101006175111

I'm pretty confident that Zoro will be able to use Kenbunshoku and Busoushoku. We'll have to wait and see whether he will be able to use Haohshoku. After all, he is the man who will become the world's greatest swordsman, so it's not too farf-etched for him to have it. Having said that, if Zoro is revealed to posess Haohshoku Haki, it won't be soon, it'll be later in the story. Luffy's posession of Haohshoku haki is still to significant, it would ruin that if Zoro was revealed to have it now.

Sanji may possibly have Kenbunshoku and Busoushoku, but I really don't see him having Haohsoku at all, not now nor in the future. And I think if he does have the first two, right now it won't be that developed yet, at least not as much as Luffy (and Zoro, if he has it yet).