I have not seen any. In fact, when you search for Cinderella cakes...even with "new movie" in the criteria...you sill get classic Cinderella results.
That being said, I may have some inspiration cakes for you.
As soon as you said cake and the new Cindy movie...my mind went to butterflies. Now please don't judge too harshly as this is one of my very first cakes, but I thought about all of the butterflies on this one and how it would translate well to a new Cindy cake...
Add that concept to something like this...
...and I think you have a good idea of where I'm going. I doubt they'd sculpt a pillow cake...well, at least not without charging you 5x the cost of a round, but I posted it since it's another thought on the glass slipper. We know they have a white chocolate slipper they can sugar coat and add to cakes, but if you want something a little different...they may be willing to sculpt a gumpaste one like what I did for this cake. I'm sure they have their own kits, cutters and tools, but as you can see from my pic below...mine glistens a lot more.
I'm not biased or anything
Obviously, you'd want blue as the main color in your color scheme (vs purple), but I think this could work for you since it shouldn't be hard for them to make butterflies. Let me know what you think.