I'm not really convinced that this will be good. More often than not, when bands get back together well out of their prime, it's not really that good.
Heaven & Hell turned out pretty damn good live, so I will disagree on that point. Tony Iommi, Geezer Butler, and Bill Ward can still play, Ozzy Osbourne... well, check out his recent 2010-2011 Black Sabbath covers.
Scream was your usual Ozzy Osbourne solo same old rehash trash that he has been doing post-
Bark at the Moon, it did have "some" decent stuff on it like the "Let Me Hear You Scream". I actually enjoyed the song he did vocals on for Slash's self-titled album, "Crucify the Dead". I'll be the first to say that I LOATHE Slash.
When Osbourne is backed by good musicians he can make something listenable, the problem is that for the vast majority of his solo career Ozzy wants to stick to the same rehashed boring pop metal. Tony Iommi, Geezer Butler, and Bill Ward are still phenomenal musicians on their instruments. As long as Tony is writing all the music and Geezer is writing all the lyrics again the new album has some potential. I'm just excited that the original line up is even recording a new studio album at all, it surely can not be worse than
Never Say Die!, but it very likely will not be better than
The Devil You Know.