Originally Posted by
Samm
Justice League: Superman, Batman, Wonder Woman The Flash (Barry), Aquaman, Green Lantern (most likely John or Jessica), Green Arrow, Black Canary, Black Lightning (due to his show), Hawkman, Hawkgirl. The first 6 are for sure sticking around, the others will likely be rotated in and out.
Suicide Squad: Harley Quinn, Amanda Waller, Deadshot, Boomerang are staying. Everyone else is roared in and out (Katana, El Diablo, Killer Croc, King Shark...etc).
Teen Titans: East. Robin (likely Dick, maybe Damian), Raven, Starfire, Cyborg, Beast Boy... maybe Blue Beetle, Bumblebee, Static and Terra as rotating members.
Bat family: Batman, Batgirl (Barbara), Robin (Dick or Damian)