Let's just wait for this movie, which is actually shooting, to come out and take the other announcements with a grain of salt. DC & Warners are notorious for making announcements of movie projects that never get made, far more than it ever happens at Marvel these days.
Remember when Akiva Goldsmith was developing Doom Patrol? When Barry Sonnenfeld was championing Metal Men? When Guy Ritchie was going to make Lobo, then it was Sgt. Rock, then Lobo again, then back to Sgt. Rock (deciding to set him in the far future! 👇 )...then, he just walked away without making anything.
DC Entertainment is going at this much slower than people think or want - yet in the end, it seems they are rushing towards Justice League at the same time. 😬
(And by the time DC Entertainment will be ready to make a Justice League Dark/Shadowpact movie, I bet Marvel will already have snapped up Guillermo Del Toro to make Dr. Strange instead. 😄 )