I saw somewhere on Halford's forum that there's going to be a special guest at this show and that it's being recorded. The obvious guess would be K.K., but maybe it'll be someone like Les Binks!
Edit: Screw phones, I didn't mean to put a thumbs down on this post.
The Sword - 12/12
Corrosion of Conformity - 12/18
High on Fire - 12/22