Yes, co-op would be a brilliant thing to have. A lot of folks here don't seem to realize co-op isn't forced on you, and many don't seem to understand the concept of Saints Row 2's co-op. It was a single-player story but with two players. It was a world in which the action was reserved for one person, but a second person was able to join in on the fun, and together the two of them would romp about in a world of happiness and explosions.
I want Skyrim to have co-op because Oblivion and Fallout and a dozen other role-playing games out there should have co-op as well. It increases the life-span of games to the nth degree when you can enjoy the experience with a similar-minded friend. Digitally walking through Oblivion's forests, or crossing the wasteland of Fallout 3 is an experience in and of itself, and that experience can still be easily had. But having the option of having a partner beside you--not some silly AI contraption that measures your exact speed and situation and responds with accuracy only a computer can provide, but rather a traveling partner with their own style, personality and skill, the two of you doing things no computer partner would be able to...
My point is, co-op is a brilliant inclusion in any game. It doesn't ruin single player games, it doesn't force multiplayer games. It's an addition that is optional and accessible, and it would be great to see. It's flabbergasting that so many folks here don't want to see an optional add-on that wouldn't in any way be an essential part of their gaming experience, but would be a terrific addition for other people; keyword being 'optional'. It's almost like saying "I hope Skyrim doesn't come with mod support because I can't mod," or something. Or hell, I'll just go all out and boldly claim that maybe some of these folks against co-op don't have any friends--or at least friends who similarly enjoy adventuring together. Or maybe the Escapist is filled with just that, Escapists. Escapism from their lives, friends included.
Meh, whatever, now I'm just filling my inbox with messages from crusading English-dictionary infused dorks misinterpreting my social observations for petty insults and ridicule. Joy for the internets. But yes, Skyrim should have co-op. If people don't want to play with co-op, they don't have to. Their game will still be great. For people who want co-op, they'll have it, and the game will be great. Time to eat this wonderful breakfast I've made while typing.
**Edit: What?!? Co-op isn't "multiplayer", in the sense you should be thrown in with a bunch of random teenagers running about! It's joining your friends and people you know on your adventure! Sure you can go online and pair with someone you don't know, and you might make a friend, but that's a risk you can decide either to take or not to take--you don't need to remove an entire game-play element based on having friends! Or, not having them.