It’s confirmed as the last film of the current DC movie universe that started with Justice League War. Superman: Man of Tomorrow is the next film they are releasing, but it’s an individualized story with new animations and characters. I’m assuming that the credits will give us an idea of where they will be headed next.v
I think that they are going to go with the individualized story route for now and then decide if they want an overarching theme/villain again or not.
Yeah, that's it. I think they gonna go with random, individual films for another year before finding another generation of new animators and new voice actors for the "Rebirth" era of the animated films.