I'm not sure who Dr Elise Novel specifically is. It could be a doctor named Elise Novel in a particular field, perhaps in medicine, research, or academia. There might be many people with this name, so more context would be needed to give a more precise answer.
I'm not entirely sure as I haven't read it specifically. But generally, a light novel often features a unique story, perhaps with elements of fantasy, adventure or character - driven plots. It could be about a character named Dr. Elise who might be involved in some sort of medical mystery, or it could be set in a fictional world where Dr. Elise has some special abilities or missions.
At the moment, there's no definite information about more Dr Stone manga. It could happen if there's enough demand and the creative team is up for it. We'll just have to wait and see.
It's hard to say for sure. The decision often depends on various factors like the popularity and sales of the original series, as well as the author's plans and the publisher's strategy.