Times Online has a story on what happens as the adventures of popular characters come to an end. It concludes:
So when, eventually, Rebus collects his P60, and Harry Potter confronts his final fate, we should not be surprised if there is widespread mourning across the land, and a clamour for them to return. Enormous pressure will be put on both authors for just one more sequel, one final opportunity to share the grime of St Leonard’s police station, or the mystery of the Hogwarts School of Witchcraft. They must resist it. A character who returns is never quite the same as the one who left. A clean break is better for all concerned.
You’ll notice the article’s author dropped “and Wizardry” from Hogwarts for some reason. Hmm.
The full story, at a little over a thousand words, is available on TimesOnline.co.uk and is worth a read.