Oh, this is gonna be good.
Check out the lenghth , titles, and subjects of some of those tunes. Tony Iommi always comes up with some sick riffs on each album. I think Rick Rubin being a fan will bring out the absolute best of all of them.
It suddenly occured to me, that Rick Rubin did the first Danzig album if I'm not mistaken, as well as the best Slayer albums and the last ZZ Top album. I expect it to be badass.
It is too bad Dio had to pass away before this would happen though. It would be cool if they dedicated or thanked him in the credits. Sabbath is the only band I like more with the second singer.