But I guess this is definitely the point where Sona will finally understand Ishwari's intentions. (I know we still don't know whether Ishwari faked her illness but still it is likely). I guess after this will begin the major showdown between Sona and Ishwari. Also, Sona will probably confront Dev about it..
Only thing which seems confusing is that there are so many tracks which are simultaneously progresssing (elena, neha ,sourabh, infertility). Hope we get proper content of all tracks.