Unless the writers want to take the story through a more convoluted drag, I can't see how memory loss for Abhi would fit into the picture.
They have already driven a wedge between Abhi and Pragya with divorce papers and baby death, so I don't see a need for memory loss. But the story or the writers are unpredictable, so who knows.
I also don't think they need a memory loss track now unless they want Abhi to not love/hate Pragya completely. He is not able to overcome his feelings for her successfully all these days. Whenever he tells he hates her or ends all ties with her, he reacts at the spur of the moment. The next day he is back to thinking that he loves her. If they want to show him without this confusion, they need a memory loss track Otherwise, they can bank on this divorce issue or miscarriage issue to create an MU between Abhi and Pragya without any memory loss
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