I don't watch anime so the Black Out animation probably went over my head somewhat. I gather there was a successful plot by Nexus 8 androids ("replicants" as they are called in the films) to destroy all Tyrell Corp's records, allowing them to evade their hunters. To my untrained eyes it was mostly a sequence of pretty pictures and bizarrely violent fights, though. Great use of the cameo by Edward James Olmos, of course. The off-planet sandbox subplot was well signalled, giving a powerful motive to the androids.
The two live action films are conventionally scripted and therefore much easier to follow. The impoverished freelance genetic engineer in the second film looked oddly familiar, but I only realised it was David Bautista when I saw his name mentioned in discussion on this thread. Then I had to go and look at the extended trailer for the sequel and saw him there, too.
At the end of one of the trailers I watched, there's what sounds like a clip from the original much-maligned 1982 narrative exposition by Deckard. The voice is young, not like Harrison Ford's current voice.
At the point where the Ryan Gosling character is confronted by an armed Deckard in the trailers, there's an oddly stationary quadruped in the background, seen only in silhouette. It could be an unusually quiet dog, but I found myself speculating that maybe Deckard has got back the eponymous electric sheep of the novel.
In the novel, humans keep live animals as a kind of sacrament of the religion of Mercerism, but Deckard's live sheep has died about a year before the novel starts and so he makes do with an electric robot sheep which mimics life just well enough to fool his neighbours.