EA Sports is working on a new open-world football game, Project Gridiron, separate from Madden and College Football, according to a recent letter about EA's future. The game is described as a social-first open-world experience, but details are unclear, including whether it will have a narrative or a shared online universe. The existence of Project Gridiron raises questions about the future of Madden and College Football, with some speculating that it could replace College Football in the future due to rising costs and declining sales.