A few websites are mentionning that King is rewriting The Dark Tower, in order to delete himself from the books.
They mention Neil Gaiman's essay as the source.
What do you think of that?"His next book, The Wind Through the Keyhole, is a Dark Tower novel, part of a sequence that King plotted and began when he was little more than a teenager. He only finished it spurred on by his assistants, Marsha & Julie, who were tired of fielding fan letters asking when it would be completed. Stephen King is a character in the fifth and sixth Dark Tower books, and Stephen is wondering whether to take him out of the next draft."
I remember reading couple of years ago (?) that he was considering rewriting the whole saga, in order to make an even bigger saga..