You know what they say about best-laid plans: they don’t always come to pass. It’s an inevitable fact of life — but when one is building a cinematic universe, that margin for error is expected to be a lot smaller. Marvel’s track record in that regard has been pretty strong. Of all the projects the superhero studio has announced, very few have been scrapped or abandoned. Of course, that doesn’t exactly account for the quality of those projects — and that’s largely why James Gunn and Peter Safran, the new stewards of the DC Universe, promised that nothing would get the green light unless its script and story were ironclad.
Sound strategy... if DC Studios wasn’t also just canceling anything that fails to meet their standards.