The physics of how bikes work are pretty complex, even without introducing full suspension, rider movement, trail terrain changes etc etc into the mix. Who can really say what is the end point - without making it yourself and trying it.
Even Mr "bleeding edge" PVD accepts that the bikes he makes that are the best; are only the best for the terrain he rides. And he is literally putting his money where his mouth is and making the solutions to problems he encounters. And able to fabricate and engineer from the ground up.
Bikes shouldn't be a one bike rides all trails design. But that's what we get. And that's why we get 1/2 degree changes every year or two (once the moulds are paid off).