Lanterns finale trailer could be setting up a DC villain even more powerful than Sinestro

The Lanterns finale trailer is here – and it appears to be paving the way for John Stewart to be the DCU's Green Lantern.

The trailer, which you can see below, sets up next Sunday's episode in decidedly cryptic fashion, but focuses first and foremost on John Stewart coming face to face with disgraced former Lantern Sinestro on an alien planet.

The trailer for the final episode of 'LANTERNS' has arrived! Premieres October 4 on HBO Max. pic.twitter.com/N9zTdjrQnYSeptember 28, 2026

"The Lantern Corps thinks that fear makes you weak," Sinestro begins. "They couldn't be more wrong."

Those with even a passing knowledge of Lantern lore will know that Sinestro became a Yellow Lantern after wielding a Power Ring that tapped into the power of fear. Worse still, that energy – an entity known as Parallax – would later take over Hal Jordan's body, causing untold destruction and death across the galaxy.

Are we looking at the first steps towards DCU Chapter One's Big Bad right here? Sinestro's next line certainly suggests so: "Fear can be the most powerful force in the universe."

Then there's the small matter of uncovering who killed Hal Jordan. Mercifully, the Lanterns finale trailer has gone light on the spoilers, only sprinkling in a few shots from the upcoming episode. But it does seem like the mystery will be solved come Sunday night – but what it means for the Green Lanterns after that is anyone's guess.

Whatever comes next, Lanterns season 2 appears to be happening.