The Fallout games have seen a big boost in popularity since the live-action TV series, and Fallout 76 is primed to take advantage of that with its next major expansion. It’s called Skyline Valley, and for the first time, it will actually expand the game’s map, introducing a new Shenandoah region in the south. Bethesda says that players will “investigate the cause of an electrical storm circling overhead and unveil the mystery around Vault 63 where they will meet its dwellers and…