Yeah, it would have been better if Ds was shown to be learning English or may be even study law if she was really keen ... but anyways...
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Gehna never had a normal marriage, but after the birth of her first child, she did have happiness of any normal marriage. She was satisfied with Basant, and gladly accepted his shortcomings too. Even in a normal marraige, people do accept the most wierd / difficult short-comings of their spouse and Gehna did the same, after her huband became human from an animal. So second-marriage should not be a complusion because her firstmarriage was bemel.
Anyways, if Gehna truly feels the need for a partner then I am ok. But in BV they mostly show that the man is always single, and ready to accept the woman under any condition, even when the woman has no interest in marriage. The women rarely have anything to sacrifice / adjust, but they always have a past . Plus they always get prince charming and everything is hunky dory. Be it Shyam, Shiv, Abhishek or Hardik...
So one more marraige of similar nature will not be interesting to watch. Unless if this time Gehna truly wants to marry and that Niranjan too has a past / issue for which Gehna also need to make some adjustments.
JaGan story had that potential where two people could overlook each other's past to make a future, but it was not a well-developed story. There was no maturity in their story. It was a rush-jump-family demand-break up and havoc.