We all know that now Sid has doubts on Shabnam and Gafur both. He is sure to keep a stern eye on Shabnam while she is again at Roshni's house. He will try to make sure Roshni and his whole saasural are protected. And we know when there are some excitement and celebration in SidNi's life something is bound to go wrong. Also, we know Ravi is supposed to be absent from shooting due to 3Dev Film. Even though he has (like a professional) pre-recorded all his scenes. However, there will come a point when we might notice him missing, so I think that might be when something happens to Sid as most have been suspecting.
So I was thinking, that after or during Karwachaut, Gafur's men attack on Sid, leading to him gone missing. Yes it will be a devastating situation. But we know Sid will be back. I want SidNi to have a happy Karwachaut unlike the previous one. But it is a drama serial and things are bound to happen. So I am assuming, Sid is about to break Roshni's fast. But right then he notices some goons and then as Sid is he rushes to catch them (without actually breaking her fast). In the process Sid gets injured really bad and no one is able to get in touch with him.
This is what I am thinking after multiple times of watching the dance video. I mean both families are happy and enjoying SidNi perform. So I am almost sure something dhamaka will happen in the show. In reality not sure how the CVS are planning to execute everything now. I am really eager to find out though. The suspense as what will happen and not knowing the end result of the track kills me...