60 Years Later: Coming Through the Rye

[Ouch!]

I don't see why anyone would WANT to write a sequel or even talk about this book, but I don't see why I care if they do, so I say let them.

Aside from the fact that it infringes upon someone else's intellectual property without any artistic merit?

As far as I'm concerned, if he wants to write something similar, that's fine. But to explicitly use characters and to market it as a sequel... well, that's pushing it too far.