I really really want your prediction to come true!But we can't forget Zain himself blindly loves his sister Barkat! and also, Aliya will tell the truth to the family about Barkat, as and when she finds out! But Barkat will manipulate family and frame Aliya!
Zain may not believe Aliya is capable of harming his family in any way! But he would be upset for sure & since he is impulsive, I really can't figure out his reaction! Also, Zubbu coming back can add to the disadvantage! Barkat might try and instigate Zain again (even though it wont work like it did at the party) but still!
But as I said Zain might be angry with Aliya but I really feel IF there's no love triangle/doubt angle in the story, ultimately it will be Zain who would figure out the whole truth about barkat that may be after the shooting track (If it is true that is, since the makers have denied it) But as of now I see things going against Aliya!
Having said that I loved what you predicted! I would so want to see that instead!