A new Fallout effort is in the works, though what it may be is anyone's guess at this point.
Actor Erik Todd Dellums, voice of Fallout 3 character Three Dog, teased the mystery project on his Twitter feed.
To all my #Fallout3 and #ThreeDog fans: There may be more of the Dog coming! Fingers crossed!” Dellums said. How was that for a tease! I was given permission to release that tease, so fingers crossed.”
While Dellums was unable to provide any other information directly, OXM noted the actor retweeted the following fan response:
"I know you can't say but I can state the obvious.. either 3 Dog in the fallout sequel or 3 dog in Fallout Movie."
All sorts of theories are flying around at the moment, but specifically Fallout 4 and an official Fallout film are the two possibilities rising to the top. As you might expect, no word from Bethesda as of yet.