I don't know. While I like wharncliffes, am not sure that I want to see CRK do one. It seems to me a large part of the charm of Sebenzas is their essentially unchanging nature. Yes, there was a change in the handle form, but that is more cosmetic than anything, IMO. I guess there are a couple different blade shapes, but am not well informed enough to say so flatly.
I think also that because Chris Reeve was the originator of the frame lock, and because the Sebenzas are so strong, that despite the relative lack of change, they still hold a leadership position in the world of knives. Trying to be like everyone else would take something away from that, IMO.
From a more practical standpoint, I don't think many wharncliffes have made much in the way of money for the companies that have offered them. They seem to me to be more a part of the custom world, and I'd just as soon see that remain the same.