Fallout 77! Now with actual NPCs!
No, but really, it's probably a remaster of Fallout 3. Unless they have pulled a New Vegas and left another studio to develop a completely new game, they haven't had the time to make something else, considering how busy they must've been with fixing Fallout 76 and making Starfield and TES6. Though the lack of a Switch version makes me doubt that, they would not pass the chance to port it to the Switch after Skyrim and Doom performed above expectations, wouldn't they?