Remember she will bring the secrets of Shefali out slowly enough so Arjun doesnt cancel the wedding until the last day.... and on the last day she will drop the bomb of Bhumi's death being caused by Shefali......
I think Shefali will confess that she killed Bhumi in anger and desperation when she will find out on her marriage day that Bhumi is alive...
Remember Arjun doesnt break the marriage becoz of Shefali's evil but because of Bhumi being alive.....
So what do you guys think about my prediction?