1. American Gods by Neil Gaiman
    Back in 2013 this was in development at HBO, and it fell through. Fingers crossed it gets on Starz like Wikipedia just informed me.
  2. Gaea Trilogy by John Varley
    Varley's website indicated that Terry Gilliam was at one time interested in directing.
  3. Wheel of Time by Robert Jordan
    I might get a lot of hatred for this, but this should absolutely be an animated series. I don't understand why this hasn't happened yet. Hey Cartoon Network: would you like to make *all* the money?
  4. Neuromancer by William Gibson
    The moment that I realized this could be successfully filmed was when I saw Rinko Kikuchi in Pacific Rim and realized that she would be fantastic as Molly. I read on IMDb that Neuromancer has been in various stages of development, for a long time. At one point Liam Neeson was mentioned as a possibility to play Armitage.
  5. Any of DC 'Elseworlds' comics, but JLA 'The Nail' or 'Kingdom Come' would be my top 2
  6. The Night Circus
    Suggested by   @szczesnyt
  7. Lord of Light by Roger Zelazny
    (For real this time, CIA.) This would be redonkulous as an Amazon or Netflix series.
  8. The Three Stigmata of Palmer Eldritch by P.K. Dick
    Suggested by   @elizabeef