"A story, uh, that I'd describe as a political fairy tale and it's for, I think, slightly younger children, so that will probably be the next thing that I finish," she said. "I'm not in a mad hurry to publish -- I would like to take my time."
Runcie had a few more questions for the world's hottest pen.
Runcie: What do you still want to achieve?
Rowling: I want to get better.
Runcie: Do you ever feel you just got lucky?
Rowling: Having the idea was lucky.
Runcie: Do you ever feel like a fraud?
Rowling: Less as I get older, but I have done.
Runcie: What keeps you going?
Rowling: I'm a born trier.
Runcie: Why do you still write?
Rowling: Because I love it and I need it.
Runcie: How would you like to be remembered?
Rowling: As someone who did the best she could with the talent she had.
Watch "J.K. Rowling: A Year in the Life," Thursday, July 16 at 8 p.m. ET on ABC.