I don't think the track would end soon, but surely Sid has got doubt that in itself is a great progress😆
Shabby will escape for sure.. But the good thing is unlike Misha's case Sid has strong doubt on Shabby (and only Shabby) this time.. Even if she escapes, his doubt will only get confirmed since he saw it a women injected something in Roshni. So, finding evidence against Shabby will take some time, but Sid is going in the right track and I'm sure Gafoor's warning to Shabby would come true.
But sending her to jail by Sid may take some time and even if Shabby is caught Gafoor can help her escape and she can try to destroy them by playing from behind the screen like Gafoor is doing now.. So, Shabnam won't go now but Sid may find out the truth soon.. Whether he can expose or something may happen to him before that is to be seen😛