The Duffer Brothers have announced a new Stranger Things spin-off series that will feature entirely new characters, a different town, and a fresh mythology. While the spin-off will explore some remaining loose threads from the original series, it will not focus on existing characters like the Mind Flayer. The creators expressed excitement about working with a clean slate and emphasized their preference for the creative process over the stress of releasing the show. They also remain proud of the character Will Byers' coming-out storyline in the recent finale.