Though an opening date for Harmonious—EPCOT’s new nighttime spectacular—has not been announced, it seems that Disney is planning for it to be open in time for the 2021 Taste of EPCOT Food & Wine Festival. Disney is now selling corporate packages that include a private reception and viewing of Harmonious in October 2021.
The Harmonious show barges have been coming out one-by-one to World Showplace Lagoon over the last two months. The centerpiece barge still sits backstage and has had four arms added to its structure recently. Testing of the barges has been taking place and last night, fireworks were tested. With construction and testing coming along, an opening even earlier than October seems possible.