PREDICTION!!
I have a very strong feeling that Sultan will think that he'll be successful in seperating Nageen and Harroon because Haroon will be nice to his ex-fiance and be understanding. He'll try to put down in Nageen's mind. There will be misunderstandings, but he'll be wrong.
In the end, I think Sultan will die. There is no way possible that he'll get Nageen in the end.