I want to know the answer to the following question:
What would happen to the Nizari Ismaili if the Imam fails to leave a successor?
All the background I'm provided with is that "Thus if any living Nizari Ismaili Imam fails to leave behind a successor after him then the Nizari Ismailism’s cardinal principle would be broken and it’s very raison d'être would come to an end.". Is that enough to answer the question?