Why not make it easy? Do a tool just like the normal transform tool in blender with gizmo but you move and ROTATE the origin instead. Very useful and easy. Origin is not only for modeling it is for animation as well, so I would prefer an animated origin.
I think the most missing feature of origin in blender is that it is no easy way to rotate it so you can align local axis of objects with the actual mesh.
There is this addon that seems nice. I havn’t have time to buy it yet, but I will as it seems to enhance the origin workflow in a good way. Would be nice with a native solution, but hopefully William will help push for such a tool.