Those are good ideas. You could just throw the moon(s) into single frame samples just to see where it would look good.
I had a similar thought about D’Qar, since it does have a ring it would be cool to see it from the surface. The ring looks so thin though I don’t really know if you would even be able to see it from the surface, and also it looks cloudy in most of the Resistance Base scenes, so it probably wouldn’t be feasible anyway.
These “what if” visualitions someone did are pretty cool though. This could’ve been cool for D’Qar but it’d be cool to see something like this in one of the films eventually.
http://www.planetary.org/blogs/jason-davis/20130626-earths-skies-saturns-rings.html