I think she might go fake pregnancy route - ask virat to give her child his name - such kind of drama.
I don’t think they will show any miscarriage or surrogacy track. They already received so much back stabbed just by news I don’t how audience will react if it actually happens in show. Already audience are mad due Pakhi slapping pregnant Sai and tweets are going around about PH and CD to ban the show.
Even if they show surrogacy - show will for sure shut down sooner