By definition of the DC Multiverse, they are indeed elseworlds stories.
The DC Multiverses only occupies 52 Universes. So I do not think The Dark Knight films or other live action Batman are intended.
I do sort of. I consider Batman Begins and TDK some Of my favorite Batman stories. So kinda...
I sort of agree with this now; though I change it for me personally, as all three films (moreso the last two).
Well then omniverse, or whichever one is about how every decision creates a new world leading to infinite universes.