I do, not for realistic continuity sake, because it's gonna be a mess, but because I've been wanting to include as much history into canon as possible and now it's official
...Nah. Not possible. Writers still like to do homage.
Bit of a fantasy trope here, long-living beings like vampires or elves either not remember every single thing because it's been so long, or they've grown to be really bored and apathetic because they've seen everything.
Anyway, I'm not taking this literally at all. I highly doubt they're writing them like they are elves. They're just gonna continue as they were.
Nah... too many dead kids, and maybe that's one reason why he can't be apathetic like elves. Too much trauma keeps it fresh ^^
No... they're going to have to make a choice, like how Rucka choose to make the New 52 Wonder Woman a Lie. The experience still happened, the island still existed, but the characters turn out to be illusions.
It's kind of the same thing. In Didio's timeline, Bruce was born in the WW2 era, and he continues to live until 2020 when 5G was supposed to begin. The term they used was the time-lapse in DCU is faster than in the real world. So if in the real world it took 80 years from 1940 to 2020, in his timeline it only took 40 years or so.
Jurgens said that not everything's gonna fit and they're gonna have to trim things, so what will happen is what already happened in current stories: Batman and Catwoman are not married with daughter yet, so they're never married in the Golden Age either.
Also, that marriage only happened once the Earth is separated into two. The one they're talking about right now is the main Earth. We still have a Multiverse as shown in Metal.
I wanna say that for all those questions, Shazam especially, I'm gonna need to wait until the writer themselves start telling their stories, and I actually think it's gonna be fun watching them trying to reconcile everything, but honestly, I think they're just gonna move on and not bother explaining the past as usual, since just like the other explanations, this is just gonna be an excuse for DC to resell old stories.