It’s official. ZSJL will release some time in 2021 because Zack has more shooting to do. The same cast will return for the additional filming. The film will be four hours in length and may be released as well in a six episode TV miniseries on HBO Max.
Notably, Henry Cavill joined for the group watch, quashing rumors that he is no longer interested in playing the role or working with Zack Snyder.
https://pressroom.warnermediagroup.com/us/media-release/hbo-max-releasethesnydercut
The Snyderverse 