The S is on this pic. They edited this pic. It wasn't there when the preorders began. Looks like they photoshopped one on.
I'm guessing it will be there in the final production piece.
I'm waiting to see production pics. If it sells out and I miss it, oh well. They should have left the ES as TBD until all three were revealed. After showing Batman, there was probably more interest in the other 2.