Thread:SuperWarrior5000/@comment-18172179-20140717055206/@comment-24845073-20140717215420

Also I'm assuming they will never be retconned as alternate realities within the DCAU because that era is over and has been for some years now... At the time of the episodes I think DKR was still considered an Elseworld tale so it made sense to play it off as being the girl's, the same as if one of the kids imagined a Batman in the late 1880s which would be Gotham by Gaslight.

As for the 50s/Golden Age Batman; I don't think Bruce Timm would have ever acknowledged him as a canon alternate version, though not necessarily by his choice; It seems DC was pretty strict about not wanting canon Golden Age characters in DCAU, something to do with disrupting continuity since they weren't doing the Multiverse thing anymore at that time. Apparently what led to the creation of the Justice Guild for that episode of Justice League.