By what little we've seen of it I wouldn't say it's necessarily closer to the Arrowverse, so much as it just seems to be a god fit for the teen/young adult demo of the CW in general.
Yes, that's exactly what I meant -- that it's
tonally closer to the Arrowverse, in that it doesn't have R-rated profanity and violence and stuff like
Titans and
Doom Patrol have. What did you think I meant?
Completely disagree here, there is absolutely no reason at all a show done in the style and tone of Black Lighting can't coexist with the rest of the Arrowverse.
Certainly it
can if it needs to, though I question whether it's better off doing so.
I doubt they'll do any movies, but it's pretty much guaranteed we'll be getting lots more crossovers.
I doubt we'll ever see them interact again, but having Ezra Miller's Flash in this is pretty clearly showing that they coexist in the same multiverse.
I think we can take it as implied that, at least within the narrative space of the Arrowverse, the multiverse includes
every live-action DC screen incarnation (and maybe even the animated ones). I think the
Crisis tie-in comics even throw in various comics universes, though past Arrowverse tie-in comics haven't been canonical.
Of course, other productions have no obligation to reciprocate and acknowledge the Arrowverse in turn. There are many cases in fiction where one story presents itself as being in continuity with another story that doesn't acknowledge it in turn -- for instance, many animated TV series that purport to be direct sequels to movies but are then ignored by the movies' live-action sequels (
The Real Ghostbusters, Men in Black: The Series, the MTV
Spider-Man, etc.).
Yes it did, it pretty clearly showed that it is part of the Arrowverse's multiverse. Hell they even gave it a number, which is more that they even did with the DCEU universe, so there's even less wiggle room there.
Well, all we really know about Earth-66, strictly speaking, is that it has vintage cars and a dog-walking guy who reminds us of Millionaire Bruce Wayne's Youthful Ward Dick Grayson. Of course it was implicitly meant to be the
Batman '66 world, but only in a winking, subtextual sense.