sorry but I don’t see why we should replace the PI for those two reasons
Pi4 and Pi5 can be powered with a USB TypeC power supply, they support 64bit kernel and userspace, if we need to move that way
If you have time and skills, please feel free to create your own recipe for this platform, sending a pull-request to volumio3-os
Many of the community portings are based on the work done by community members