I've just watched the deleted scenes of Blade Runner from the Final Cut Blu-ray. It's really amazing how, when put together in one long reel, they're essentially a 45-minute-long parallel cut of the entire film.
Not only that: in my opinion, the much-derided voice-over and (now rather less) "happy ending" as seen here actually work much better than in the theatrical cut. Probably because the camera in the deleted scenes rarely moves far from Deckard, so this "alternate cut" of sorts feels more novelistic overall. (Of course the fact that Ford's narration is entirely different than in the 1982 releases helps immensely too.)
One other detail I liked is seeing Tyrell complain in a note to his personal chefs that his evening glass of milk is "still too hot". This shows the screenwriters really doing their research for the idea of an Asian-dominated future LA; the tradition in China even today is to drink one's milk and water hot, as traditional Chinese medicine thought drinking cold liquids was dangerously unhealthy.