Not sure, she does seem like Malini 2.0 to me. This pregnancy track can have 2 outcomes.
1. Aryan will misunderstand Imlie as the baby either belongs to Adi or Madhav depending upon how the situation is portrayed in front of him and now that Narmada is also anti-Imlie. This will cause their separation and Aryan might end up with this baba jo until the truth is out (leap etc.)
2. Aryan will have a doubt on Imlie but for her honor will stick with her and find the truth out and later come to know about baba jo and her real intentions
Narmada's negative side could actually bring some disaster to this whole thing. Otherwise why they changed her perception overnight. One thing which we all know is Imlie never had any physical relation with Adi so she has to be a virgin. When Aryan and Imlie consummates their marriage, wont Aryan realize that she is a virgin?? How would he then even believe that the baby belong to someone else. Its all very confusing. Its better we as audience stop thinking and just watch the show.