I think Rakhshanda Khan was lucky for KS as soon as she left the show after the PR raaz, KS started to fall down the drain little by little. If we all think back the best think that happened in KS was JB marriage, then we got to see a jealous Bani, then the PR raaz poped and KS really took a 360 degree turn.
I think Rakshanda should come back to show, Pi should now be punished for her sins and JB should start behaving like real couples and work thinks out together.
As long as Pia was the sweet, bubly character who loved her sisters and Pushkar the show was a hit as soon the dark ful Dubai was aired, KS is never the same anymore.