To me it seems like the ATX12VO specification is more of an endorsement of the direction PC power supplies seem to be moving in rather than a from-scratch redes

To me it seems like the ATX12VO specification is more of an endorsement of the direction PC power supplies seem to be moving in rather than a from-scratch redesign. It would be nice to have higher voltage (19V, 24V or perhaps higher) for a single voltage supply, but it would be a far bigger change to the overall PC ecosystem.