One thing I particularly liked was the "baseline" test updating the Voight-Kampff machine, because I could actually understand what the hell it was testing for, rather than the somewhat more perversely arbitrary interrogation of the original which seemed to be testing not whether replicants felt, but whether they felt "correctly."
Speaking of being "correct," I think they also handled the Deckard question perfectly, with a line revealing he is, followed by a line revealing that the prior line was just fucking with him. Probably. Everyone gets to be right!
I didn't really get why open-ended life-spans would be so acceptable just because the modern models are designed to obedient. Obedient to whom? Obedience to an evil master can still do a lot of damage and, over time, replicants will learn more and more but the movie did a masterful job of toying with our expectations of just how far that obedience extended. It's certainly hard to understand how any kind of 'resistance' could have evolved from just a few rogue Nexus 8 rogues if everyone is so obedient.
It was the Wallace replicants that were built to be perfectly obedient (for whatever that's worth, considering K could be pushed out of obedience, and Luv reveled in her ability to flout her instructions when she killed K's boss. The last Tyrell models (including the 8s) were apparently as free as Batty and co were. In his scene with Batty in the original film, Tyrell says that the four-year limit being intended to prevent rebellion was bullshit, and it was actually because they hadn't figured out how to make replicants live longer. It was always possible that Tyrell was lying then to try and mollify Roy but, well, I guess it was true. It looks like the main "safeguard" in the 8 series was that they began putting visible serial numbers on them. I got the impression from
the anime that Tyrell Corp was hoping to integrate replicants more fully into human society, which didn't quite work out.
Plus, L.A. felt very empty here as well. It sort of reminded me of the world of Spielberg's Artificial Intelligence.
When I rewatched the original last night, I got some clues that most people had already left for the off-world colonies, and L.A.'s ultra-urbanization was a relic of a bygone age. Mostly the lack of traffic, and the way J.F. Sebastian talks about how he can have an entire five-story office building to himself since there's no shortage of space for everyone. The planet seems to be a bit of a ghost town.