All i'm proposing is a better control system for the CVT, no mechanical changes... except that i would want the gas pedal to be an elctronic input and have actuators at both the throttle plate and the cvt gear so both engine and tranny are in my control.
I think the only hurdle is that people are dumb... which really blocks most of the world's progres... it would just feel "different" and that my drive off the idiots. It would always cruise at the throttle/rpm that would produce the required HP to maintain speed while being at the most efficient available point on the BSFC chart, and at pedal positions above neutral it would seek points on the chart with scaling hp, so at full throttle it would seek its way to the greatest hp output.
Hard to describe in 500 words or less, but I understand myself so it must be possible