No he won't get it, the strawhats are a nine people crew. Why would Zoro need it when the Captain already has it. I can't think of any situation where it would be useful for Zoro to have CoC besides Luffy.
Don't come with the example that Shanks, Rayleigh, and Roger all had CoC while being in a small crew. They got it for plot reasons, Roger is dead, Shanks is his own captain now, and Rayleigh needed it train Luffy.
There is absolutely no function if 2 strawhats had a unique and a one in a million ability, because it devalues the technique greatly. If Luffy is in the position where he has to knock out for example 50K people, Zoro would always be there in such a big fight. Besides, the CoC is the one thing that raises Luffy above everyone else in the crew. It's also called the King's deposition, and Luffy is the king of the ship.
These are all valid reasons why I believe Oda will never give Zoro CoC, because it has no functionality. This trumps every arguments that says it would be cool, or because Zoro has to parallel Rayleigh, who by the way has absolutely nothing in common with Zoro except that he was recruited in a similar fashion by Luffy, and is able to fight with a sword.