>>149747695
I don't disagree completely, but I think the problem with that is that the idea originally stems from the characters getting transformed and the immediate consequences of that, so if it's actually an alternate reality where they've always been like that, instead of them just believing it, then it loses some of that genderbending appeal.
It's somewhat cheating, but the way I imagined this, is that it would've been basically similar to those old "Imaginary Stories" that DC did. Basically weird ideas and stories that each take place on their own separate Earths that are mostly similar to the main one, except for one change or story that they would never do in the main canon. That way, it's still its own alternate Earth (I assume everyone would get swapped eventually), but you still keep the transformation aspect that this idea started as.