I love the "Convert to Arnold material" function and use it all the time for models I import from 3DSMAX or cgtrader that don't come with Arnold materials. However, it would be extremely useful to also have the reverse function, to roughly convert Arnold materials to C4D materials (only considering the basic functions of the standard_surface node). This way you could quickly send the file to someone who does not have Arnold to look at the scene without having to rebuild everything from scratch and relink all the texture maps.
Do you have any ideas how a script for this would look or if it is even possible if you are not a developer of Arnold? Or would it be possible to include a feature like this in a future release within the right click context window?