I'm pretty sure this series is out-of-continuity but, as they say, the Killing Joke once was too.  From https://www.bleedingcool.com/2018/09/19/how-bruce-waynes-history-is-changed-by-batman-damned-1-spoiler/
How Bruce Wayne’s History is Changed by Batman: Damned #1 (SPOILER)
Posted by Rich Johnston September 19, 2018 
We mentioned that this was coming, but publication has confirmed it. As well as Bruce Wayne remembering a demonic young girl running through his history – whether remembering her now, or if she is rewriting his memories, that is not clear.



Though it may provide a get-out clause for this scene.



In which it is clear that while alive, Thomas Wayne is having an affair, and doing so in front of the oblivious Bruce Wayne. Who is heading for a fall.



It was a similar rewriting of past history that caused much concern when Marvel revealed that Spider-Man’s dead girlfriend Gen Stacy had had an affair with Norman Osborn, the Green Goblin, and had given birth to twins. Everyone has tried to forget about that since.
But with so much emphasis placed upon Thomas Wayne and Martha Wayne by the Batbooks, how much of this will seep through to the regular titles? Batman Damned really wants to be the new Killing Joke, and that’s an example of continuity not necessarily intended for the main series making its way into the regular books…BATMAN DAMNED #1 (OF 3) (MR)
(W) Brian Azzarello (A/CA) Lee Bermejo
DC BLACK LABEL, the highly anticipated new imprint from DC Comics, starts here!
The Joker is dead.
There is no doubt about that. But whether Batman finally snapped his scrawny neck or some other sinister force in Gotham City did the deed is still a mystery.
Problem is, Batman can’t remember… and the more he digs into this labyrinthine case, the more his mind starts to doubt everything he’s uncovering.
So who better to set him straight than… John Constantine? Problem with that is as much as John loves a good mystery, he loves messing with people’s heads even more. So with John’s “help,” the pair will delve into the sordid underbelly of Gotham as they race toward the mind-blowing truth of who murdered The Joker.
BATMAN: DAMNED is a bimonthly super-natural horror story told by two of comics’ greatest modern creators-a visceral thrill-ride that proudly puts the “black” in BLACK LABEL.In Shops: Sep 19, 2018
SRP: $6.99
 
(Last Updated September 19, 2018 12:09 pm )
Jeff Preuss • 12 hours ago
So. She looks very much like the Enchantress from the Suicide Squad movie, albeit as a child.

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Joebloke Jeff Preuss • 8 hours ago
by jove, I reckon you might have nailed it. matey. solid call.

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jalamere Jeff Preuss • 8 hours ago
Good catch.
I thought she looked familiar, and I kept thinking "Death of the Endless", but that did not feel right. I think you got it.

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JayStrang • 12 hours ago
Why do you keep pretending this book isn't explicitly in its own continuity?

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Joebloke JayStrang • 12 hours ago
give it a couple of more days, & he'll start calling it the unauthorised sequel to the Killing Joke.

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Batlash JayStrang • 4 hours ago
I'm ok with DC doing alternate versions of it's characters if they get great books out of it, why not?

Batman: Dark Prince Charming was way out of continuity with Bruce Wayne getting yet another ward to take care of (a young girl) and we all know she'll never be mentioned again, but who cares? It made a great story!

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Evan Meadow JayStrang • 12 hours ago
Because like he said, if sales and fanbase popularity demanded it, it could become canon like other books have.

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Zagreus Evan Meadow • 9 hours ago
Saintly Thomas and Martha is a thing most people like. Hell, I like it. I like that Bruce had genuinely good and loving parents. So, nope. Nope. Nope. Nope. But sure, fun for an elseworlds story. No problem.

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Sussudio Prevention Hotline Zagreus • 8 hours ago
Right, like the Telltale Batman game's change of Thomas and Martha. It's a nice twist and sets the story apart, but no one's going to clamor for that change. It's just clickbait for click's sake. And we all fell for it.

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Blade X Sussudio Prevention Hotline • 3 hours ago
History has shown us that past out of continuity stand alone stories have been either made canon or had ideas taken from those stories and introduced into the main continuity because (a) some fans turned pro loved those stories (b) those stories were critically acclaimed and hugely popular and (c) said stories were written by popular and critically acclaimed writers.











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