Hi. I've read Snyder's Batman Vols 1-7, and King's Batman Vols 1 & 2.
I noticed the events of Snyder's Batman ( Owls, Joker, Zero Year, Joker again, Bloom ) were referenced in Tom King's Batman. Isn't Rebirth essentially the pre-new52 continuity, and isn't New 52 a completely different earth? If Zero Year, a story about Bruce's first days back in Gotham, is canon to Rebirth, does it mean they yet again retconned Batman's origin story? Is Year One no longer canon?
I'm probably wrong about the Rebirth universe being the same as the pre52 one, can anyone please explain this?