The "Happy Ending" refers to the scene after Deckard and Rachael leave the apartment. Gaff spares Rachael's life, allowing her and Deckard to escape the nauseating confines of Los Angeles.
While the director's cut and final cut have a more ambiguous conclusion, the theatrical cut has a more traditional happy ending, which ironically was brought to life with B-roll footage from Stanley Kubrick's iconic horror film The Shining.
Though the theatrical "happy ending" seems to diminish Blade Runner's intended themes a bit, the conclusion still could be summarized as the inevitability of death and the dehumanization of technology.
In the final moments of the film, K collapses in the snow and dies from his wounds sustained in battle, but not before fulfilling his mission and revealing to Deckard the truth about his own past. The film ends with Deckard reuniting with his long-lost daughter, Ana Stelline, in a poignant and emotional scene.
K then used the situation to fake Deckard's death, saying he drowned. Afterwards, he took Deckard to Stelline Laboratories, urging him to meet his daughter. As Deckard went into the lab, the severely injured K laid down on the steps outside and succumbed to his wounds.
Because of this memory, K became convinced that he was Rachael and Deckard's child, but was eventually informed by Freysa that he was not and that the child was female. With this revelation, K soon determined that Stelline was the child. K took Deckard to Stelline's lab as she interacted with a snowfall hologram.
As a result, K presents himself as stoic and rather serious and rarely ever smiles, which contributes to his intimidating presence when on the job, he is also thorough in completing his tasks as a Blade Runner due to his lack of or rather suppressed emotions.
The big twist in the final act of the movie is that K isn't the son of Deckard and Rachael at all, but just another cog in the machine that might lead to the child's discovery.
During the final fight with K, after subduing him, she smugly kissed him and retorted "I am the best one!", as if trying to prove her superiority over not just K, but all other replicants, further hinting at her deep-seated insecurities that she kept well-hidden.
However, he later learns that, even if the memory is real, it was not his own but Dr Ana Stelline's. Through her work, Dr Stelline shared her memory with K, and this allowed him to understand what it was like to walk in her shoes, but most importantly, to believe himself a free, loved replicant.
Instead of killing Deckard, K saves him from Luv and reunites him with his daughter, getting mortally wounded in the process. Whether this action is enough to make K human or give him a soul is entirely up to the viewer.
She weeps when they suffer and is heartbroken when they die, but is incapable of acting to stop either. Like so many people who feel helpless in today's society, Luv is a prisoner to her programming. Luv's first very-human tears come as she witnesses a murder.
However, by the end of the movie, Deckard felt empathy for the Replicants' cause, and he and Rachael ran away together, as they could no longer be a part of this corrupt, Replicant-hating world–and Gaff, a fellow LAPD officer and Blade Runner asset, let them go without even attempting to pursue them.
Roy Batty is the leader of the renegade Nexus-6 replicants and the main antagonist of the film. He was activated on January 8, 2016, which makes him 3 years and 10 months old by the time of the events of the film.
Ridley Scott's dystopian classic Blade Runner (1982) is reexamined in these autistic terms, where the cyborg characters are reconfigured as neuroqueer subjects, and the postmodern spectacle is reimagined as the empathetic core of a pro-disability message.
The film reveals that Deckard was able to conceive a child with Rachael, and this was possible because she was an experimental prototype (designated Nexus-7), the first and only attempt to design a replicant model capable of procreation.
Furthermore, Deckard was human, while Rachael was a replicant, so if they only had one child it would have been half human half replicant, but they actually had twins(from the same egg), one of them being 99% human and the other one 99% replicant.
His perfect match would disobey her programming to help him. Regardless of your opinions on the above, I do think that the movie clearly says that Joi's love for K was programmed/created by a corporation. But he loves her back.
This is when she slices his eyes with her katana, permanently blinding him. While Elle manages to escape with her life and leave Los Angeles for parts unknown, her actions may have actually motivated Wallace Jr. to become the ruthless CEO he is in Blade Runner 2049.
The horse, with the inscription "6.10. 21", establishes the connection between the dead female replicant who gave birth and died on 6.10. 21, and K himself, implying that the memories were not in fact "implanted" but are rather genuine after all.
Doctor Ana Stelline (Carla Juri) designs memories for the Nexus-9 Replicants but is forced to live in a bubble because of her condition. She's in no condition to lead any sort of revolution or lead her “people.” In fact, she's a key point in the machinery that allows them to be produced and enslaved.
In Blade Runner 2049, the male principle is embodied by “K” (Ryan Gosling). K is a blade runner—a professional operative whose job is to hunt down and kill the manufactured humans called replicants. K is a replicant himself, and he knows it. He accepts his role and has no aspiration to defy or overthrow it.
Later at K's apartment, he informed Joi of his conclusion that his memory was indeed real. This overjoyed her, as she always believed him to be special, insisting that he now be called "Joe." Unsure, K sought further information and Joi suggested finding the one responsible for creating memories for replicants.
