Yes, the current hardback and paperback books are going to be withdrawn - so they can be revised. Both will be getting new covers soon. The text will have a small change too - because some readers haven’t noticed one of the twists at the end - there will be a new paragraph in the final chapter so that everything is crystal clear. As clear as a bell. As clear as crystal. As clear as a clear blue sky on national clarity day.
So, if you’re a book speculator hurry up and buy the old version before it’s too late.