To clarify, I recently picked up Sleeping Dogs Definitive Edition and one of the DLCS included was a bunch of costumes from other Square Enix games. I'd love it if Beth did something similar in Fallout 4. Just imagine if you could find Corvo's mask and trench coat or Doom guys armor. What do you think?

They have had other 'easter egg' items like that, like That Gun, I believe, is almost a direct copy of the gun from Blade Runner and there are others, I'm sure. Whether they'll use references to other games in their "family" or not, who can say, but I doubt it. Modders, of course, will happily put anything in game, from a full Assassins Creed costume and hidden blade, to modding Power Armor to look like a T-800 skeleton from the Terminator movies.

Yeah that's a grand idea! I wouldn't mind finding a rusting & deactivated terminator endoskeleton in a cave somewhere, in reference to Future Shock or even a few Skyrim artifacts would be nice.

I generally like movie reference Easter eggs, but not sure I'd really like some from other games, especially games that are from different genres since I probably didn't play them. The last I recall is finding the DOOM marine in Duke Nukem 3D (yeah, that was a few years ago). But finding things like Indiana Jone's body in a frig or something is cool I guess.

I'm fine with little easter eggs that reference other games.

Sure, let's have an assassins mask that has a passing resemblance to Corvo's Mask from dishonored.

Have a unique rocket launcher with the letters B, F, and G visible on the side of it.

Little things.

Callahan's Magnum from Fallout 3's Broken Steel.