I think it's stupid to try to get Jo to do something she doesnt want to..if she changes her mind on her own and in a few years wants to write more about Harry's world..than wonderful! but if she feels its done and she doenst want to do it anymore..then it wouldnt as good because who wants read something that an author's heart isnt in? it'll show in the book and in her writing..so its all up to Jo. I personally would love for more Harry Potter books, but only if Jo really wants to write them. only time will tell.