Still a priority for Warner brothers.
Just cast Michael B. Jordan as John Stewart and be done already. Jesus!
https://collider.com/green-lantern-movie-update/
Apparently it's set for a 2023 release.
"Other projects on the slate due out in 2022-23 include Warners' and New Line's Black Adam (July 29, 2022) and Shazam! Fury of the Gods (June 2, 2023), as well as Warners' Blue Beetle, Batgirl, Supergirl, Green Lantern Corps and Static Shock."
https://www.hollywoodreporter.com/heat-vision/ava-duvernays-new-gods-james-wans-the-trench-dc-movies-not-moving-forward-at-warner-bros