I was under the impression that there is a pretty good likelihood of this making it onto the screen?
As much as I like the UTD series, I much much prefer sticking close to the original story. I think the determining factor for me when deciding whether to watch or not would be the network it is on. I am not a huge fan of the idea of UTD being played out over many seasons and much prefer the idea of longer episodes that can come together as a film (much like the Bag Of Bones miniseries) In fact, I think I'd prefer this kind of format over a film for this book.
I really enjoyed 11/22/63 and however it may come about on the screen, I just hope it is done the justice it deserves.