Take these with a grain of salt but my sources are almost always better than Golgo's."DCEU LEAKS"
-Zack Snyder might not direct JUSTICE LEAGUE 2 if JUSTICE LEAGUE also receives critical backlash.
-JUSTICE LEAGUE is massive and filled with characters. Snyder and Chris Terrio wrote the script together.
-Henry Cavill, Ben Affleck, Gal Gadot, Ezra Miller, Jason Momoa, Ray Fisher, Amy Adams, Laurence Fishburne, J.K. Simmons, Jena Malone, Jeremy Irons, Connie Nielsen, Viola Davis, Diane Lane, Joe Morton and Harry Lennix are the returning actors from previous movies.
-Amber Heard, Imogen Poots, James Remar, Alfred Molina and Ed Harris are also cast as Mera, Black Canary, Iris West, Darryl Frye, Thomas Morrow and General Wade Eiling.
-Gugu Mbatha-Raw and Tessa Thompson are in negotiations to play Sarah Charles.
-Javier Bardem, Jackie Earle Haley, Frances McDormand, Joel Edgerton, Rosamund Pike, Bill Nighy and Willem Dafoe have also been approached and/or are in discussions for undisclosed roles.
-AQUAMAN will feature Ocean Master and the Trench. Black Manta is not slated to appear at this point.
-THE FLASH will feature the Reverse-Flash, but it's a "new twist" that producers are confident will set it apart from the TV show.
-Shawn Levy is the frontrunner to direct SHAZAM.
-Matt Reeves, Duncan Jones and Rian Johnson have been approached about GREEN LANTERN CORPS.
-CYBORG is still in the backburner until JUSTICE LEAGUE provides feedback on the public's reception of Cyborg. If it happens, it'll have a black director.
-Ben Affleck is still reluctant to direct the new BATMAN movie, but he's writing it. It'll definitely include Jared Leto's Joker.
-SUICIDE SQUAD 2 is likely to happen in 2018/2019 judging by early reactions.
-Alona Tal- She's been cast as Black Canary.
-WONDER WOMAN features Ares and Circe.
-SHAZAM will obviously feature Black Adam.
-CYBORG and GREEN LANTERN CORPS don't have defined villains yet.
-GREEN LANTERN CORPS will be centered on Hal Jordan and John Stewart.
-There are plans for Doomsday to return.
-George Miller is producing JUSTICE LEAGUE, but hasn't decided whether he wants to direct a DC movie or not.
-DARK UNIVERSE is pretty much dead.
-BLUE & GOLD is an infant project, and won't come out earlier than 2019.
-DEATHSTROKE, BIRDS OF PREY and LEGION OF SUPERHEROES movies are in early development.
-Batman is trying to assemble the Justice League to protect the Earth from Darkseid, while the government, represented by Amanda Waller and Wade Eiling, is trying to capture them.
Darkseid is a "force of nature", and is impending arrival is described as "apocalyptic" with biblical undertones. He's also being redesigned, though they'll try to keep his classic look in mind.
Superman's rebirth is somehow connected to Darkseid, and includes Darkseid attempting to corrupt him in some sort of astral plane. Lois will be important to this subplot.
Darkseid will have some sort of ability to force the League members to handle their own dark sides and go through psychological trials. It appears to be capacity for good remains a theme of the movie, with the League members all being shown to be dysfunctional, angry people that could have tipped over to the dark side easily if circumstances were a little different.
The focus is on the six mains and Lois. Everyone else is just minor.