What if Tanveer sees Asad and Zoya's feelings emerging and feels she needs to distance them? I think she will get Asad drunk and seduce him, putting disance between Asad and Zoya, and forcing him to get engaged with her saying its his child.
Ayaan may be forced to team up with Zoya to keep him from marrying Humara and Zoya from having her visa expire. He will be so greatful to her for always bringing the brothers back together, that they may go into a contract marriage when Asad is engaged to Tanveer.
Asad has his perfect-ideal-girl in front of him, Tanveer, but will not give her a second glance. However, with Zoya he is always in a Mitwa moment. Slowly but surely he is realising this misfit is who he loves! He better hurry up before that stupid cat gets her claws into him!
I really do hope I am wrong!