Having the ability to retain the stars rating metadata from lightroom or other software. Display it and have the client change it or add their own rating (even better), would be a great addition. This is crucial to our workflow with clients, especially for commercial fashion shoot and fashion product shoots.
With the current approval options, our clients would not be able to find out at a glance, which shots we already rated and how highly rated each shot is compared to others within the gallery. Also changing the order of the gallery. Our clients have a need to do their own edits. Especially when narrowing down hundreds of shots from a single day shoot. Clients, art and creative directors like the option of rating multiple similar shots higher or lower, especially when editing down for retouching or toward a final edit.