So what publishers are working on high end stuff? I know that Legendary PrCs are coming from Fantasy Flight Games based on the preview in Polyhedron, but is anything else coming down the pipeline?
LI has some ideas for this sort of thing, but until we see the Epic Level Handbook, and if it will be included in the SRD, we're holding off on any plans.
No need to reinvent the wheel, and definately no need to do what someone else is doing better.