I believe at one point it became a sort of open-ended run. I mean, you can't beat a cast like Jane Krakowski, Antonio Banderas (in a role that should have won him a Tony), Laura Benanti, Chita Rivera, Mary Stuart Masterson, et al. The replacement revival wasn't nearly as exciting though.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"