Fallout 4 may seem like a difficult game to expand upon, what with the hours and hours of gameplay available even once you've sorted out that pesky central quest line. There's always another Deathclaw to fight and another settlement needing your help. Another one? Really Preston? Can't you sort that shit out yourself by now??
Honestly though the main narrative isn't really the crowning appeal of Fallout 4, it's the sheer openworld-ness of the thing. Did anyone really care all that much about Shaun anyway?
But yes - like Fallout 3 and Fallout: New Vegas before it - we are getting expansions for Bethesda Softworks' critically acclaimed Fallout 4, though the studio is staying pretty tight lipped on when we can expect said DLC and what said DLC will encompass... Everything about it really.
At the Fallout 4 launch party last year game director Todd Howards commented a little on the DLC expansions, but didn't really give a whole lot away.
"This game is huge, but it's not just this launch. It's going to be well deep into next year. It's like the game is done but it's not done, because until everybody plays it, it's not really done."
Okay, what? So basically Howards is saying that the DLC content is going to be a major part of the game, because Fallout 4 as a whole wasn't even complete come launch day.
And why isn't it complete? Because player feedback is going to shape the game from here on out. Fallout 4 is the base canvas, the way users interact with the game mechanics is what makes it complete, and the DLC will be based on what players want to see and how the game develops as they play.
As Howards said:
"Because what they bring to it is really important; we're going to see what people like, what they want more of, what they want different, and we're going to do that."
So when will we find out more? Well Bethesda will be holding their own press conference at this year's E3 (12 June 2016) so likely we'll get news coming our way then, if not before.
At last year's E3 the developers used the conference as a launching pad to preview a bunch of upcoming game reveals, such as Fallout 4 and DOOM, so it's likely that we might get some DLC preview around this time (but hopefully some some concrete news before that).
All Bethesda will tell us right now is that there's "more info coming soon" about the expansion packs, which are expected to release sometime in 2016.