The following settings should be unified for the 2.80 release:
* Light intensity and color when not using nodes (D4588)
* Color management settings on image texture node and image datablock
* Depth of field
* Material, world without nodes?
* Motion blur
* Film transparency
The shared settings would be ones that affect the look, and not render quality / sampling settings. We will need version patching for backwards compatibility for Cycles and Eevee, but this will not be exact.