His popularity was never in doubt. But will the producers risk their money and efforts to cast him in their shows/films after seeing him in the house and how he conducted himself there?
Bigg Boss is a closed environment you are locked up with some 15 people with no other means of support.Yes people may react differently to that kind of stress and their behaviour may be totally different outside.
But they compare his behaviour with the behaviour of the other housemates staying with him and see how he deals with situation as compared to others.
Right now Asim Sana even Paras come out as stronger individuals who can handle pressure much better than him.
So people will think twice/thrice/many times before casting him in their projects. TRPs/popularity is worth the hassle of handling this trouble called Shukla is the question.