I'm surprised that Seema did not try to rekindle her relationship with Dutta after he became DUTTA BHAO. From what we saw of her in the flashback, she was a nasty, greedy girl at the core. So when Dutta became powerful and rich, I'm shocked she didn't try to hook him...perhaps she tried? It was mentioned that she became a zindalaash?
That brings me to the three sisters. Like one of our awesome FF scenarios (Seema coming back), what if the three sisters try to ruin Dutta's relationship with Naku by bringing Seema back into the picture? Yes, Dutta would not give her the time of day, but he would be shaken up by it, forcing him to withdraw within himself...and away from Naku a bit? He would not want to upset her about Seema. Right now, the sisters' hands are tied, as they "promised" AS that they would convince Dutta to keep Naku. But they can keep this vachan, AND work to break them up too.
Any thoughts?