I don't want to disparage anybody, so I hope none of what I say contributes to doing just that.
I don't understand why people want to see multi-player (or social aspects, or whatever) in a game that was designed to be a single-player game. It's no different than, say, buying a Dell and then asking everybody why it isn't or won't ever be Alienware.
You bought a single-player game. It says it right on the back of the package: "Players 1"
If Obsidian (or Bethesda, because I know people talk about the same thing with TES) wanted the game to be multiplayer, or anything *other* than a single-player game, they would have just done it.
To the people who request this feature, why don't you just play in a virtual world or a MMORPG?
As for challenges, I'd be willing to bet that the fact that this game is a huge, open, scripted environment would hinder multiplayer a great deal.
Well, typically, single player games have a lot more interaction s well as graphical depth to them then MMOs, so it is perfectly understandable why people might want the ability to play with others. Also considering potential roleplaying aspects. No longer having to traverse a world along with near mindless AIs following you.
MMO worlds tend to be sparse in detail and lacking in features.
Give it five billion years or so.
Our sun, Sol, can NEVER go supernova. It is far too small. It will expand into a red giant, then collapse into a white dwarf.