I dnt see any possibility of this happening..
Zoya values marriage a lot, she can not fake marriage to get close to Abbu.. She even did not fall for Billi's blackmail for Asad.. she chose what is right where it was easy for her to keep calm and let Asad marry Billi and she could have got her Dad's name so easily.. But Zoya did not do it.. So how can she fake marriage with Ayaan who is Asad's brother for her selfishness.. If Zoyaan is happenig then it will be forced or under extreme conditions but Zoya wont fake it..
Ayaan is also falling for Rajni/Humeira... Humeira is almost parallel lead now, she can not be evil.. She has been ver sweet always.. She is mentally weak thats why she tried to commit suicide when Razia forced engagement ..And all this is responsible for her DID now.. She is too sweet and innocent.. She can not be evil.. Cv's wont ruin their love story which is taking shape beautifully..
I highly doubt Zoyaan now ..