There are far too many problems than forgetting the dead wife and estranged husband and coming together in marriage.
1. Yash's mom has made it clear that she would accept a widow as her daughter-in-law but not divorcee. I cant understand the logic, may be she is worried about the girls tolerance and attitude towards married life. It is sad that people still hold the woman responsible for the failed marriage.
2. Aarti's father-in-law is all set to hide the fact that Aarti is a divorcee. This would cause more damage if Aarti doesnt come to know of the lies that have been told. She would think Yash knows about her past. In promo#2, Yash asks Aarti if she remembers about her husband and she doesnt answer. Now it makes me think that may be she knows about the lie that has been told about her marital status (may be just before the marriage from her MIL) and when Prashanth may make an appearance later, hell will break lose.
3. The condition that Yash's parents have laid may be that Ansh cannot come to live with them after their marriage. Since Aarti's F-I-L is already favoring this idea, he might coax his wife into this and hide it from Aarti until the marriage.
I dont know what the CVs have planned, there are too many knots and how these would affect the lives of 5 and their families is indeed going to be interesting.