They just announced/re-announced Flashpoint, Green Lantern Corps, Shazam, Wonder Woman 2, Justice League Dark, Batgirl, Nightwing, The Batman, etc. at SDCC. I can see The Batman being self contained and not having effect on any overall Justice League plot, but still being a part of the DCEU. With Jeremy Irons and J.K. Simmons in it and everything.
I'm just going to wait for the movies to come out. We went through this same circus with Wonder Woman. Making a Joker origin film is beyond stupid though.