Rumor StatusBlue Sky
An old concept is rumored to have been dusted off that would replace Tomorrowland Terrace. The original idea was called the Astronomer's Club would be in the same vein as the Adventurer's Club but featuring famous astronomers as the entertainment.
November 1, 2015: On Episode 90 of The Unofficial Guide's Disney Dish podcast, Jim Hill reported that Disney is considering re-working Tomorrowland Terrace as a themed restaurant. One concept would be the "Astronomer's Club where an Adventurer's Club style option would feature astronomers as the entertainment.