Ridley Scott has finished up the script for Blade Runner 2, and Harrison Ford apparently thinks it's the "best script (he's) ever read".
One thing I wonder. While Philip K. Dick wrote Rick Deckard to be a human, the first Blade Runner film is written ambiguously enough so that one may assume that Rick Deckard is actually a replicant himself. If the second film is made, this may lead us to believe that he was, after all, a human and not a replicant. I mean, how else could one believe Deckard is a replicant if Deckard has aged since the first film? Either way, I'm still looking forward to seeing how this unfolds.