After what was show in 69th episode that is Jaldi as curse breaker, his bad dream about CP in 67th episode makes sense. What I deduced from everything is. Don't call it my prediction but simply deduction.
1. Queen Emily is the main villain while Chandra Prabha(CP2) is just her follower. After CP2's husband makes her wear the bangle, she lost all her previous goodness and became evil. She then killed her husband after becoming completely evil under Emily's influence.
2. CP2 is not well-wisher of CP but actually wants her to join her evil world since CP2 is completely evil after being affected by the bangle. She is after Jija as she feels him threat to her plan. She may think that if CP marries anyone the curse won't affect her but instead the curse would be broken or for other reason like she wants only unmarried girls from her family to join her evil world. She lied to Jija about CP doing murder+suicide if married and suicide if she gets to know about the curse so that Jija don't tell anything to others and make sure CP don't marry anyone. In this way, he work will be continued even if she is inactive. After coming outside, Jija will be of her no use so she will kill him.
3. The dream Jaldi got in 67th episode was not CP2's doing but he got on his own. Why only he got the dream when Jija who knows about CP and CP2's connection should have got the dream? The reason may be that it's a signal that it's in Jaldi's hands to save his daughter's future before it's too late.
4. On kaali amavasya raat, CP2 plans to make CP part of her evil world. Since CP may be the only daughter born in CP2's generation after CP2, she may not have targetted any other girl in her generation before that. Or who knows she targetted other girls too in her generation and made them evil. Jaldi has to save his daughter using his unknown power or she will become evil like CP2. Jaldi in his dream could not save his daughter so she gets trapped in CP2's room as a symbol of her being part of evil world now. But in reality with Jija's help, he will definitely be able to save CP and break the twin peacock symbol's curse. If by chance, Mayuri wakes up in between then she too will help him.
5. Due to Gulzar's constant rant about love web plan against CP, CP2 may use it to expose Jija's earlier plan to others in an effort to stop him from finding Jaldi as curse breaker or even if he finds then make Sharmas so much angry on him that they don't believe what he says. But still Jija will somehow convince at least Jaldi to listen to him which he will do due to the bad dream he saw. Even Jindals may get angry on Jija but won't hate him. Jaldi will realise that Jija truly regrets his plan and may even realise his love for CP.
These are just my deductions not predictions as I said above. But serial may show something else or who knows at least 5% of what I said may come true.