I cant really seem to find anything that says she has no plans or does have plans in the future to write more related novels. Novels specifically, not movies or video games. Also want to Clarify, I dont mean an 8th installment that involves harry potter or even necessarily any known characters. But a new story or branching one in the same universe. Idk just seems like If I was an author of a book that billions of people love and I was still alive at the time. Id likely add more content through spin offs or something lol