It should be pretty diverse .. they are still saying that power metal acts will be a part of the fest .. just not necessarily the main focus. It's an easy trip up for me, so I'll almost assuredly be in attendance.
"Powerfest" has never referred to "power metal" specifically. Every lineup has contained at least a couple bands that were prog, death, thrash, or something outside of the realm of power metal.
Just as well. ProgPower already alots us the opportunity to check out all the best Prog & Power acts the world has to offer. It's best that they not tie their hands to just the two genres.