"The Golden Apple" - Though I'm sure that it is still too intelligent a show to be popular...
I have been wanting revival of "Pippin" just so that Nanette Fabray could be cast as Berte, so that I could see her in a musical before she dies.
Ana Gasteyer was a phenominal Fanny Brice here in Pittsburgh a couple of years ago. And, as the show starts in with a flashback, I'd say that she would need to be as old as she was whenever Nicky Arnstein got released from prison.
But Streisand is so ingrained in every fiber of "Funny Girl" that you would have to discover the next Barbra Streisand to make you forget the original Barbra Streisand if you were to mount the show again.
Hey! How about a reality contest show to do just that!
You can call it "Who Is The Pip With Pizzaz?"
"A coherent existance after so many years of muddle" - Desiree' Armfelt, A Little Night Music
"Life keeps happening everyday, Say Yes" - 70, Girls, 70
"Life is what you do while you're waiting to die" - Zorba