There’s a second Manhunter that they revealed right at the end and didn’t kill, John finally got his powers but it’s doing it on his own terms which sets him up to be an anti hero, and he made a new oath right at the end that definitely sounded like he fucked up the phrasing and is now in service to the lantern itself. The guardians were really dodgy, and Sinestro is just chillin through the portal still. It was all cliffhanger.