I really have no idea why a 1934 vintage film format should be the holy grail of digital photography. The idea for a smaller and cheaper "sensor" format started back in the film days with the APS format, which came too late to have much impact as film format due to cheap digital cameras flooding the market. So I think DX will stay in the same market segment that was to be the home of the EOS IX or the Nikon Pronea. And why not keep it going up to the D300 camera level for those cases where the DX crop factore is benefical (long lenses)?
hobby aviation photographer