^ Mandy...now that I think about it the 4th visa would be Mishti's. Vidyut wanted his daughter alive and am sure he managed to find her. Even if Mishti returns, I hope CVs have thought of a proper way to end her character. She cannot stick around with Avneil. Certainly not being parents to her. Avneil need to be together and alone before they are shown as parents. I understand the humane part of their personality but they cannot be shown to raise a child who does not belong to them any which way!
Perhaps Mishti will help in proving Avni innocent although how much a 5 year old can do is questionable.
It has to be her because it makes no sense why it would be DM of all people, there is no reason to revive her from the dead and have her be the big mastermind behind all this. It would be illogical and be an insult to villains like Ragini and Vidyut. Mishti is much more logical and would give closure to the fact Vidyut did find his daughter and she is very much alive. I don't know how the CVs intend on handling this but most definitely she cannot be raised by Neil and Avni. I would rather see a redemption track for Vidyut than ever see that. CVs have to know how strongly fans feel about Mishti being adopted by AvNeil, it just cannot happen!