Great clever automation. Obviously I mean setting the hi-poly list once and forever per object. Or a group maybe. Or - Blender would need a way to access objects in external scene files from inside a Python script.
Neox - Blender may work like that in near future. This is the matter few months. Once TDs prepare one specific material we will be able to assign it to all the objects and bake them with same settings. This may apply to standard bake when you load hipoly with texture and bake it onto lowpoly. I'm the guy behind proposal…