My prediction:
Yuvraj is still not completely out of the scene. There was an article mentioning he has a change of heart. It could be a plot to kill Mukta and Vishnu. He might succeed in doing that and Mukta's baby ends up with Meethi.
Or Mukta might voluntarily give her baby to Meethi after knowing her truth, thus taking uttaran to another level altogether.
Like Iccha and veer, they may also show that Meethi gets better with medicine later and has her own baby along with Mukta's.