It initially seemed like this was where Johns was going (in-story) in Justice Society of America with the JSI earth.
The JSI had a seemingly identical past to the original heroes of the pre-Crisis Earth-Two and remembered a CRISIS, the sky turning red and believed that their earth was the only earth in the multiverse to survive.
Frustratingly the story also had little hints and nods (Kara Zor-‘EL’, Batman’s yellow oval etc etc. which indicated that this was not the original. Soon afterwards, it was outwardly confirmed.
Still, I believe Johns was toying with the idea of an ‘archived’ Earth-Two. The seed had been initially sown in Infinite Crisis when Earth-Two was the only earth to be resurrected (by Alexander Luthor) which had no people.