Well, as much as I love Diahann Carroll, we've probably seen the last of her on stage. She had to drop out of the On Golden Pond revival last year (replaced by Leslie Uggams) because, sadly, she couldn't remember her lines. And that role wasn't a particularly large one.
"What a story........ everything but the bloodhounds snappin' at her rear end." -- Birdie
[http://margochanning.broadwayworld.com/]
"The Devil Be Hittin' Me" -- Whitney
OK, apparently the Papermill people never read this thread because that's a hell of a boring casting choice. I doubt much people will go through the hassle of going to the Papermill to see a show that's done almost every month in different regional theatres, without an interesting star in the title role. To quote Michael Bennett's post: "zzzzzzzzzzzzzzzzzzz"