Here's the trailer for the new Hobbit movie coming out next December. Looks pretty awesome to me although I would have liked to have seen a clip or two of Smaug. Although I'm confused as to why Galadriel is in this one. http://www.youtube.com/watch?feature=player_embedded&v=eM--4UklaL4
Just before the world ends, lucky eh? Perhaps Smaug will not be shown in any previews and you will have to wait to see the movie? They're likely still messing with his CGI anyway. No idea why Galadriel is there. I don't remember her being in the book but it has been a while since I last read it. Or maybe the story is being changed?
I read that they were adding some additional female characters from other stories because there aren't enough females in the original book. So, I guess that would be changing the story a bit.
No she was never mentioned in the book because I just read it a month or so ago. Elrond is mentioned in the book when they come to Rivendell on their journey to the Lonely Mountain. I kind of thought (and it was never mentioned in the book either) of Bilbo looking at the shards of Narsil while he was there.