"According to TheWrap, HBO Max Head of Originals Sarah Aubrey announced the series will be an origin story for two Green Lanterns at the Television Critics Association press tour. She revealed it "will span several decades and focus on the origin stories of two major Green Lanterns on Earth." It will also feature Sinestro, a longtime Green Lantern Corps villain."

More here:

https://www.cbr.com/green-lantern-hb...ters-sinestro/

And here:

https://www.thewrap.com/green-lanter...ewart-hbo-max/