I have to add that every few months the doom and gloom story gets dragged out to say that the show is washed up but the box office has really been very respectable and shows no sign of slowing down.
The biggest issue they had was when they were throwing all of their effort into getting big names and didn't seem to believe in the show or promote it. You'll note that their new ads have finally replaced the 'out in front' pictures of the stars with the chorus etc and started to promote the show instead of the stars.
There is no doubt that Lane and Broderick made these roles their own but the show is strong enough to stand on its own, a claim that Boy From Oz does not seem able to make. The fault, if there is any, seems to lie with the current trend of promoting the star name in the vehicle, thereby lending credence to the idea that when the star leaves, the show is not worth seeing.
There is a lot to see in the Producers with good solid talent at the helm as there is with Oscar et al. I don't see it closing soon and BTW all this talk about Box Office is very funny, given the fact that most shows would KILL to have anything close to the numbers The Producers continues to pull.
"Life is a lesson in humility"