Frankly, I feel this could easily go the duplicate way. Just because they did not show the man dying, doesn't mean he did not die. Mandaar's death is so mysterious, that they can take it in many different directions. He could be Ved's pawn in this game. I think, Ved and Mandaar will come together, cause Ved wanted to destroy RaghaVi. So, it will be a parallel.
What I think is Sunny and Mandaar are a two-pronged attack by Ved. One for Raghav, one for Pallavi, and RaghaVi overall will be impacted.
If someone asks me, I want another of the bombastic, " I am happy to be Pallavi Raghav Rao" wala moment happening again for the D family. Cannot handle Pallavi being in that family anymore.
As for Raghav Rao, haven't seen him fight for Pallavi to be with him. It is Pallavi fighting for him and to be with him. But, if she will be in a moral dilemma, Raghav will need to fight for her, to be with her. Cause he clearly knows Pallavi will never want to leave him on her own unless it's a moral dilemma.
And legally, well, we have to see that if this is the real husband after all. And if is brought up, I want Raghav to read the Hindu Marriage Act this time on the D's faces. I have really a lot of doubts - Firstly, what were the circumstances of the marriage, was it registered, what happens if the supposed husband disappears for over 2 years. Mujhko Mandaar aur Pallavi ke marriage ke legality pe questions hai, rather than RaghaVi.