Tonight, Bethesda Game Studios’ Todd Howard confirmed that Fallout 76 is an online-only game, fully embracing the model of multiplayer survival-crafting games like Rust and Conan Exiles. There’s plenty to be gained by taking this route with a spin-off from the mainline series of single-player action-RPGs....
Source - IGN
Unsure how I feel about it being an online only game. I'm definitely not excited about the idea.