Well as you can tell from my screen name, I quite liked this show

It was more spectacular at Drury Lane though let down by Ian McShane as a lackluster lead. It was more focused when it moved to the Prince of Wales, but lost all the sets
The origianl Australian production opened and closed in 2002 - changes had been made from London and it was rumoured that it was a try-out for Broadway, but obviously didn't succeed as well as it might have. There is a 're-imagined' version running in Moscow, Russia which is spectacular if weird (www.eastwick.ru)
As for it's Broadway chances - very little at the moment. The producing partners of Cameron Mackintosh apparently wanted a pre-Broadway tour, but after doing the sums found that this would be too expensive, and it's all gone quiet. There was a reading in 2003 at MTC, but nothing came of that either. It has now been released to selected amateur groups in the UK to stage in the coming year.
Incidently, Kristen Chenoweth is actually on the demo recording along with Ruthie Henshall.