J.K. Rowling may not be done with Harry Potter just yet: The author hinted to Oprah in an interview on Friday that there could be more Harry Potter books down the road. I could definitely write an eighth, ninth, 10th," she said. "I'm not going to say I won't. I don't think I will … I feel I am done, but you never know.” She also said that, even if they’re not about Harry Potter, she will continue to write books.