It seems like Patrick Rothfuss and George RR Martin have a one-upsmanship fight going about how badly they can abuse their fans without alienating them all.
George: I can make them wait more than 6 years for a book.
Pat: I can make them wait more than 7.
G: I can make them wait more than 20 years for the story to end.
P: I can start a TV series based on my trilogy before I've finished.
G: I can have my TV series pass the books and spoil the plot.
P: I can sell 10th Anniversary editions of my first book without any hint of the third book being ready.
G: Ooh, good one.