New Hyper Projection Engeki Haikyuu!! announced

The last chapter of the manga "Haikyu!!" will be published on July 20, 2020. But the theater adaptation isn't finished yet. The next show, "Hyper Projection Engeki Haikyu!! - Gomi suteba no kessen" will run in Fall 2020. Worry Kinoshita will continue to write the script and direct and Shunsuke Wada still compose the music. More informations will be communicated later.
The previous stage play, "Hyper Projection Engeki Haikyu!! - Saikyo no Challenger", had been cancelled because of the COVID-19 after just 4 performances. 

Source : Official Twitter 

(c) Haruichi Furudate / Shueisha - Hyper Projection Engeki “Haikyu !!” Production Committee