https://www.cbr.com/kevin-smith-zack...trilogy-plans/
Boy I am glad this isn't getting made, sounds like a hot mess.The sequel would have had the League leave Earth and travel to Apokolips to confront Darkseid, leading to a colossal battle that would most likely involve New Genesis, Darkseid's rival planet and home to the New Gods. The battle would have involved the Green Lanterns,...
Despite the heroes' best efforts, the film would have had ended with the League defeated and Darkseid coming to Earth, where he "levels it."...
The end of the trilogy would have taken place in the post-apocalyptic world Ben Affleck's Bruce Wayne saw during the Knightmare dream sequence in Justice League. With their world decimated, the League would have gathered together one last time for their final stand against Darkseid and his Apokoliptian forces.