My prediction:
Sid will Anu not to be with Vedant and all. He will create a big ruckus at the engagement. KK will be shocked. But Vedant will be all upset. Beat him up & all. Then he may say something like I care about Anushka. There no one will say anything. But sid will wage war with Kk. But he will only tell Kk and not everyone.
Sid might tell Kk And Kk will genuinely act like he doesn't know what Sid is talking about. Which will make us viewers again start wondering: what's happening?
If not that then Kk May right now or in a few episodes admit to Sid that he did it. Anu will end up marrying Sid and Kk will sage his war on Sid. And there maybe it's a lesson to both to chose love over hatred or revenge?
But either way I think they will end up putting Sidushka together and still continue the hatred, fighting or whatever.
Any thoughts?