The final date for IllumiNations: Reflections of Earth was announced during the live broadcast of the popular nighttime show on April 9. The final show will take place on September 30, 2019. A new show, Epcot Forever, will begin the next night, on October 1. Epcot Forever is a temporary replacement. A new still unnamed show will debut at Epcot in 2020.
You can watch the full broadcast here.