After Anshuman said to Paakhi about if I am no longer around, maybe Paakhi went into a long dream about Anshuman words and what it would be like if Anshuman is no more. Maybe Paakhi has a long nightmare if Anshuman died. It was strange for Paakhi to be kidnapped, then after a long time Paakhi brother and sister in law comes. Maybe Suman leads Paakhi into this nightmare.
Maybe she remembers Ayaans mum died in a car accident and dreams of going to the hospital but this time it is Anshumans death. Who knows this might be the twist the CV's been hiding while making the acting to be done as real as possible to show Paakhi's nightmare.
I give it two weeks to see if this theory is correct. Who knows maybe Paakhi dreams what is gonna happen in advance and stops Anshuman dying, a bit like Final Destination but without the deaths after for the people who sutvived.
Reastically I give this theory 1 out of 100 chance of it happening.
My realistic theory is Anshuman dies, Aryaman/Bittu becomes like Anshuman Rathore, becomes a businessman and a dad to Ayaan and says to Suman I don't have to steal anymore, I can live the dream and be in a family that loves me and feel finally I belong in the world. He will mention Anshumans last words to Aryaman. Aryaman/Bittu will give some money and make sure Suman has a good life and keep in contact. Aryaman/Bittu will feel that maybe god test was instead of kidnapping Ayaan that he met Ayaan to be a father figure to him. Paakhi will play a long to this fact until Ayaan is old enough to understand/deal with his dad;s death.