i have a thought Zoya always says that marriage for her is a life time commitment.if and when she marries she will honer this commitment for her entire life. if zoya somehow marries Ayaan rather then Asad. then there will be no chance of Asad and Zoya getting back together. even though zoya is in love with Asad and Ayaan is in love with humeira. if they were forced to marry each other, zoya would have to make the marriage work. and ayaan will not break the commitment either.
Zoya is a strong minded person and does not give in to preasure of any sort, even under pressure it is not in her character to do something her heart and head do not agree with. so i dont think she and ayaan will marry or hookup.
i feel that something happens and zoya gets sidetrack from her relationship with Asad, creating a small seperation between her and asad, which will sort itself out in time. this the cv's will do just for drama and to take the story forward.
otherwise what is the point of strong charcters and making them weak, people dont like indecisive characters who change at the drop of a hat, we love zoya because she is strong and shows it, she does what is in her mind and heart rather the sacrifice, for someone else sake. Asad is a man of principle and does not diviate for that. it shows in his attitude with hasina, he did not give in to any of her demands, and did give more then he should.
thought ayaan is a weak link and a weaker character, he still has some strength and only surcumbs for his family's sake but is not blind.
and even if zoya and Ayaan are somehow thrown together, i dout they would meekly accept this fate with out fighting to getout of it. and find their own happiness with the ones they love