She was on Watch What Happens Live tonight and when asked about Broadway, she said she was offered a production that went on to win several Tonys but the timing didn't work out. She wouldn't say when or what it was.
Did she say it was this season? If not, the possibilities are pretty endless. However I always thought that Pearl Bailey and Queen Latifah look alike and wondered what it would be like if Queen Latifah took on Dolly like Pearl did.
It is too bad she won't do Hello, Dolly. I think she would have been great and it would have been a great opportunity for her. And I do think this must have been the show she was referring too.