Bahubali, the conclusion trailer itself has created lot of interest among the people. So all are waiting for the release of the film. Already the producers made their money. Now it is the turn of distributors and theaters to wait for money returns.
Coming to your point. We have history in Indian Cinema or even the world wide that 2nd part of any movie could not ever come close to the first part. It never get the same popularity as in the first part. Whether you take Hindi movie like "Hera-Pheri", "Krish", Spiderman',"Terminator", "Alien" etc. The second part indeed, brought some new sensation or thrill but it never become like first part. The reason, people comes to see the movie keep thinking about the first part and when same amount of satisfaction they don't get, the movie become then normal. Let's see what is the future of Bahubali2.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease