I doubt this. The standard ATX form factor has been upgraded to reduce size over various years with the vast majority of accepted iterations maintaining the sa

I doubt this. The standard ATX form factor has been upgraded to reduce size over various years with the vast majority of accepted iterations maintaining the same mounting hole and IO panel locations. I literally have a mini-ITX board sitting in a case I purchased in 1999. This probably fits more into the fear you state in your comment with a reasonably new technology "forced" to consume more space than is necessary, but I think it argues for the opposite by showing that incremental changes to a standard format can allow for wide ranging compatibilities. For an example, when ATX was altered by squaring the board to the shortest length (microATX), it didn't require a new case or a new power supply to be placed on the market in order to be consumed because it fit within the "too big" ATX case. Then when cases that only fit microATXe became abundant and another incremental change to the motherboard size to DTX, we again didn't have to release new cases or power supplies or IO cards to start to consume this version. It allowed consumers to purchase and use the boards until they decided they wanted to reduce their case size, amortizing the upgrade costs over months instead of requiring larger up front payments.