i would say the bhondu creatives simpy want to create suspense thats why they are showing all this there-an-evil-shadow-following Prem and Heer thing...
As per weloveag's info,
ash will first make entry followed by Nihaal and then veera-gayathri-Ash truth will be out and then after that Geet turning negative will be shown...
So there is not only one mystery person , there are more than one...
the one who is trying to kill Heer could be Geet...coz I'm sure once the whole gayathri -ash truth is out they will show that Geet is Obsessive psychic lover...thats how BT has always done to once upon a time nice characters....plus they have shown us earlier Geet admiting that she loves prem even after uniting prem and heer...
It could be RR, what if he is also coming back to take revenge...sanjana must be dead and so RR wants to kill heer too...i know thats a chindi prediction
the one who's shadow is following them and whose footprints harman saw could be Nihaal....the bhondu and duffer that he is, would be scared to come in front of the Jzoo and would be watching his sisters' happiness from far...
the one stalking Prem could be either Nihaal or ASh or RR....Nihaal ,trying to get a chance to talk to prem to prove his innocence or Ash , trying to get a chance to tell prem that she has his illegitimate son..and RR trying to take revenge....I would like to see RR coming back....
what so ever, hope the mysteries would unfold soon not that I mind
Harman Bond gets to do some brainstorming ...
It'll be fun to watch Prem and Heer solving mysteries....
I love that look on Prem's Face...