Obsidian Entertainment has been tasked with developing a new Fallout title as part of Microsoft's recent organizational changes. The studio's celebrated work on Fallout: New Vegas established a foundation that shaped fan expectations: players anticipate sophisticated dialogue systems, nuanced faction mechanics, and a setting that maintains tonal distinction from Bethesda's mainline entries. Conventional wisdom suggested continuing on America's west coast, where Obsidian could expand on established lore while avoiding conflicts with Bethesda's planned east coast focus.

The situation has become substantially more complex in the intervening fifteen years. Bethesda has confirmed that events from the recently released Fallout television series will be incorporated into future games, meaning the western territories now have competing canonical narratives. Additionally, Fallout 76's ongoing evolution as a multiplayer title has further populated the shared universe with new developments. Given these constraints, industry observers suggest Obsidian might find greater creative flexibility by setting their game in an unexplored North American region rather than revisiting the west coast—a different approach than what seemed obvious during earlier speculation about a hypothetical sequel.