Though Rev 10 is largely a rings orbit (don't miss the zero phase Ring images), and very few satellites observations are planned, there are a few gems to be found. First, there is a sequence of zero phase angle Rhea images (one is shown above). These allow Cassini imaging scientists to look at the opposition surge effect on Rhea as well as look albedo without topographic shading getting in the way, though you will notice that many craters are marked by albedo features along their rims, usually bright frost on the poleward-facing slopes. In addition, Rhea's large ray crater system is quite prominent.
The other raw images now available show the small, inner satellite Prometheus. These images show the irregular shape of this small moon.