I think the rogue demons wont be changing (other than the small catagory changes we've seen). I think the crystal brush is going to be somewhat a separate entity. I could be wrong though.
I asked on the Adepticon forums and (unfortunately) have not had a reply. You'd think they'd be there right away to say "Yes, we're keeping the 8 (or 10 or whatever) year tradition of the Rogue Demon alive!"