Dev's plan will work somehow and Kaajjal agrees to marry Dhruv because Dev convinced her and she's doing it for Dev. They get engaged and somehow Kaajjal finds out about the whole sandook thing and she realized Dev is sacrificing everything for them before he dies and she decides to save him. She will tell Dhruv everything and how she truly loves Dev and the wedding cannot go on any longer. They both make a plane On the wedding day Kaajjal and Dhruv like 5 minutes before the wedding starts declare they won't get married and they expose the whole sandook thing. Kaajjal tells Dev that she knows he loves her and that if he dies she will die too so they should just live their lives out together instead of all these sacrifices because Kaajjal's khushi lies in Dev. Dev will try to convince her not to go through with it but Kaajjal will emotionally blackmail him and they end up getting married. Then to the whole Kaajjal death thing that the channel already gave us. I think that something will happen to Kaajjal, but Dev's love and his prayers to Gannu Bhaiya will save her.
Well there's my prediction. I'd love to here yours too! :)