I'd say they'll try again in about 5-10 years.
The funny thing about talking DC is that everyone chastises them for rushing into a teamup, but now that they're taking they're going back to the drawing board and working things out behind the scenes, nikkas are mad they're taking too long. Not saying you're doing this, OP, but everyone gotta wait.
Most of what we know about their current plans are the three movies officially on the docket and industry scuttlebutt. Joker is outside the main universe, but we know Wonder Woman 1984 and Birds of Prey are next year. James Gunn is working on Suicide Squad 2, Aquaman and Shazam are confirmed for sequels, Matt Reeves has The Batman, Rock says Black Adam starts shooting next year, Ava is working on New Gods, and Flash is about ready to go once they either bush Ezra Miller or that nikka gets his mind right and decides to not fukk up his bag. That's more than enough for the next couple years while they decide what they're going to do with Justice League.
I think people problem is that most questions you can ask about any of their upcoming slate can be answered with
Are any of these movies in continuity?
IS there a continuity?
When does Flash come out?
Who's playing Batman?
What's the deal with Suicide Squad?
Does the Snyder Cut exist or not?
I personally don't mind them chilling for a bit while they get their shyt together, but when your competition is an expert at the info dripfeed, you gotta give the people SOMETHING solid if you're still asking them to come out to these movies.