Here is Midler's tweet:
Well HELLO! This Dolly has an announcement coming tomorrow ! Stay tuned!
— Bette Midler (@BetteMidler) January 19, 2016
Singer/actress Midler, who made her Broadway debut partway through the original run of Fiddler on the Roof, returned with concert shows in 1973 and 1975, and made a recent encore as a performer in I'll Eat You Last: A Chat With Sue Mengers in 2013, and as a producer of Priscilla, Queen of the Desert in 2011.