This revolution is now in full swing, with a Titan encounter (Cassini's 90th!!) on the 17th.
In the meantime, some great raw images of a very dynamic F-ring are available This sequence also shows prometheus, pandora and I think, Pan in some of the shots.
The F-ring orbits (commencing late November 2016) should be amazing, as there'll be images at 10-times the resolution of these.
Also a great shot of Enceladus eclipsing the rings here
What a ride!