Thanks for the excellent write-up ...
Babu2008, your analysis is very good. I agree with you.
Radhika will not be re-married. Let me rephrase - the marriage ceremony will not complete.
But there is another reason why I think it will not happen and that is - (a)Purohitji's illness and (b) Uncle Sushil is plotting to hurt him. So guess who will save Purohitji from Uncle Sushil? Sweet Radhika !!! And this will be an excellent way for her to gain the trust of the Purohit family (especially Vaishali, who is currently the person who wants Dev to forget Radhika).
Dev will not accompany his family to Delhi and somehow Radhika will end up in Delhi.
Dev and Radhika will meet ... they have to, because Kanha blessed their marriage. The director cannot do otherwise because faith plays a big role in the Indian psyche.