Depending on how creative one is, we all have our own understanding of why Katappa killed Baahubali. As far as writer Vijayendra Prasad and director Rajamouli are concerned, they must have found all this speculative thinking dangerous. The worst part of this, for a filmmaker, is that a few of the folks might get it right. And, in the age of social media, if s/he were to post his take on YouTube/FB or circulate as Whatsapp forwards, it would result in the suspense dying before the film comes out. No prizes for guessing that some of them have been doing it.
There are every chances that one of such versions was spot on.A nationally famous portal known for its political-economic content has most recently written that 'Baahubali-The Conclusion' may have been re-shot with an "alternative script". After all, with people expecting so much from the saga of Katappa's murder of Baahubali, and some of them possibly succeeding in outsmarting the writer (only the writer would know if some of the versions have done that), there is every possibility that the second edition was re-scripted as an afterthought.
Remember that there had been confusing signals about the extent to which the second part was shot while shooting the first part. It was widely circulated that 40 per cent of the second part was shot before the first part's release. This is why Sept 2016 was when the second part was expected to be released. But that was not to be.
Even this year, there were contradictory reports about the extent to which the shoot was completed. The roles of characters like Tamannah's seem to have been re-written thoroughly. All this points out to the probability that 'Baahubali-The Conclusion' was re-scripted and several portions re-shot as an afterthought.
