I know what he's talking about. Bill Kalush told me about this deck a while back but I've been swore to secrecy on it until it was ready for release.
Superior is a new brand for Expert PCC. The first release in this brand has the Classic card back - meaning the backs are identical in basic design (though not colors) to the original Classic decks, done in red, blue, black and gold. I'm mostly certain, if my memory serves me well, that they'll have a new face design that will be the standard face design of the Superior brand. Beyond that, I can't say - you have to wait for the release.
I believe there are plans being put into place for future releases with new back designs. Think of it in some ways as being like the Bicycle brand for USPC back in the old days. There was a standard Bicycle face and several different back designs in different colors were marketed. Whether they were Leaf Backs, Santa Backs, Rider Backs, Coral Backs, Tri-Tire Backs, Racer Backs, Cupid Backs, etc., they were all still Bicycle decks. This is what the Superior brand is being positioned to be for Expert PCC. As the Classics have an old-style face, I think Bill wanted a more up-to-date face for the Superiors, but I can't say with certainty as I haven't seen samples of the faces yet and the concept may have changed. When he spoke to me about it last, it was still in the planning stages so there could be any number of differences now.