I hope it has some revisions in the works. What I saw in London was slightly above mediocre. A few funny moments, half a good score (all the songs for the men need to be replaced), unnecessarily huge sets, and a lazy, lopsided book. And if you're going to definitely set the action in the late 70s, you really need to remove some of the 80s references and orchestrations.
"What can you expect from a bunch of seitan worshippers?" - Reginald Tresilian