Would it not be more prudent to start modularising helicopters?
Interchangeable avionics, engines, transmissions, rotors, etc.
Yes there are advances in airframes that can be beneficial, though the requirement to upgrade key components over the lifecycle of a machine either means a new airframe or an expensive upgrade and certification path.
A more cost effective way of upgrading with lower certification costs would go a long way in reducing lifecycle, upgrade and innovation costs.
Is this a pipe dream?
Airframes can then have a separate/parallel development track.