The only way this leap will work and won't bring about the end of KS is if there is no cross marriages. Meera can live in WM and act as aya ma to the kids. Bani can assume that Jai and Meera are married, a notion helped along by Jiggy. Bani can live with Daksh and family as his SIL, but Jai will think something else is between them. Misunderstanding galore. JW back in his old form of Khadoos and lots of JB scenes of jealousy, anger, longing etc.
As soon as any cross marriages happen KS will be doomed and I feel lot of people have the same opinion from the posts on this forum.