there is no one official story of the xmen. there have been several diverse retellings. and all are official marvel material as I understand it, and can be considered cannon in that respect, but only onto itself. Uncanny xmen in no way invalidates stories in Classic. Unless, I suppose stan lee says so, If any would take precedent, i think it would be either the original first story lines, or the latest "up to date" retelling of a particular event/story/character. and that would probably just be a personal opinion.
I kind of think that's what I was saying, actually.
I bring up Marvel comics in relation to this word "canon," because that's where I first started coming across the word as it relates to the "fandom" community. Every single thing that comes out under Marvel is "official." There's a whole review process any story has to go through before it can get published - be it a "What If?" issue, or something that comes out under "The Uncanny X-Men" title. Of course they're all "official." But at the same time, the storylines have all got quite muddied over the years, and some people have since tried to put together a coherent timeline. That's where "canon" comes into play.
I mean, (shifting to DC Comics,) look at Superman. His very first appearance in a story was "Rise of the Superman" (title might be a bit incorrect, but it's close to that.) It dealt with an alien from a planet with a much higher gravity than ours - the sci-fi concept that such a man would be superhuman on our world, and capable of extra-ordinary feats. (He can "leap over tall buildings in a single bound" not because he can fly, but because he's used to a much higher gravity.) He was a villain, however - he came to our planet not as a protector or a hero, but as a conqueror. That is an "official" DC comic. But it absolutely contradicts our view of what Superman is now. Superman "canon" says that he is a good guy (one who does not kill, either - something he's done in the past, as well,) despite "official" releases quite to the contrary.
(Batman, by the same token, was originally just a guy in a green costume with a gun - that whole utility belt thing didn't come until much later, ditto with him being a millionaire bachelor by day, his revenge story, etc.)
I see no reason not to consider the dlc official content. If they screw up your perception of the world as you believed it in F1/2 too f'ing bad. The story doesn't end with those either. and will continue to change. :shrug:
And like I said - I think we're debating terminology more than content, here. Yes, yes, a thousand times yes. Mothership Zeta is "official content." It's put out by Bethesda, for crying out loud. There's nothing in there to make it "unofficial."
But "canon" is a different word. They don't mean the same thing. And there's no reason for them to. There's already a word for "official content." It's called "official content."
Canon, to me, is when (and I've said this hundreds of times by now if I've said it once,) Fallout 2 places Tandi as the head of NCR, which was an outgrowth of Shady Sands. This is regardless of whether or not you saved her in Fallout 1, which ending Shady Sands received when you beat that game, or even if you slaughtered the entire town. Those events became canon when Fallout 2 came out and over-ruled any previous actions. (Or when the sequel to Legacy of Kain came out and decided that "canon" was that you chose the "evil" ending in the first game.)
In a videogame, I fail to see how the term has any meaning beyond when it becomes necessary to over-ride a player's action in order to maintain continuity over a series of games. There's very little in Fallout 2 that needs to be "Canon" because there's little in Fallout 3 to reference those events. There's nothing so far in Fallout 3 that needs to be canon because nothing has come out yet which has any need of setting particular events "in stone" in order to maintain internal integrity. (I know I've said this before a lot of times, as well) that for "canon" as a definition, to have any relevance to an ostensibly "open world" videogame, that it can only refer to those element which
must occur, even (and especially) in retrospect. If it absolutely
does not need to be canon, then it
absolutely cannot be considered as such.
If you want to get right down to it, "canon" can only ever be defined, except after the fact. Because it's only ever necessary in order to maintain consistency, it only ever becomes defined after the fact. (At least as far as videogames are concerned.)
None of that has anything to do with what is "official." That's another thing entirely. (And I don't think anyone here is saying there's anything "less official" about Mothership Zeta than anything else to be found in Fallout 3.)
Frankly, this whole thing reminds of the age-old question "if a tree falls in the woods and there's no one to hear it, does it still make a sound?" If something happens in a videogame that I don't experience as a player, does that still mean it somehow magically happened?