Fallout 4 DLC: 13 Things We Want for PS4, Xbox One & PC

Gunners

The Gunners look like raiders except they're called Gunners. You get bits and pieces about the Gunners and their background (paid mercenaries that aren't to be messed with) but you don't get the whole story in the main game. 

There are a number of theories floating around about the Gunners and their part in the game but nothing has been confirmed yet.

I'd love to see Bethesda explain their history and motives (something, anything) in upcoming DLC. And if it's interesting enough, I wouldn't mind them being made into a joinable faction.