One thing that makes Blade Runner and other movies classics is the ambiguity of certain important aspects of the film. As a matter of fact, ambiguity gives the film a longer lifespan than a film that answers every question. In the case of Blade Runner, the one topic of ambiguity is the nature of the protagonist. In the first film, particularly in the director’s and final cuts, there were scenes that suggested that the protagonist of the film Deckard is a replicant. However, one issue that appears with the film is that Deckard appears in Blade Runner 2049 in an aged form. For some people, this shuts down the replicant theory. However, there are plenty of other things to consider.
While in the first film, it was stated that the replicants had a four year lifespan, there are lines of dialogue that suggest that not every replicant has the four year lifespan. In the theatrical ending that was cut out of later versions of the film, Deckard’s voice over has said that Rachel, who was a replicant, was special in that she had no termination date. However, she does not appear in the film. It might be explained what happened to her, or there might be ambiguity in that case as well.
One thing that the director doesn’t want to do is answer the mystery as to whether or not Deckard is a replicant. He did say that he will take care of the mystery. The best way to take care of the mystery is to keep it going. As to whether or not K is a replicant, the trailers seem to spoil that he is a replicant. However, this is not going to be the big mystery in Blade Runner 2049, which will be released this October in premium theaters.