Here's what I think will happen. Asad will somehow find out that Tanveer and Imran have a thing. He loves his sisters more than his life and would never let Nikhat be upset. He knows how much Nikhat loves Imraan.
I feel like, just to make sure that Tanveer is out of Nikhat's life for good, he will marry Tanveer (or at least express the wish to marry Tanveer) and that will manage to push Zoya away from him.
I know it seems impossible that the CVs would actually follow the original concept, but they have done this in their previous show. Just when you thought that there was no way hat the original concept would come to pass, they made it happen. It could happen here too.
I hope like hell that it doesn't. But it could...