The Stargate-Atlantis Comic-Con spoiler video is now available!
http://tv.yahoo.com/stargate-atlantis/show/35558/videos/3559666 has the video online. Thanks to Maureen Ryan of the Chicago Tribune for posting the link. This 2.15 minute video does contain clips from season 4, but they go by so fast, you really can't get spoiled (unless you know NOTHING of the cast changes, then, er, avoid).
UPDATE: Visit next link on this LJ - http://wraithfodder.livejournal.com/93006.html - for detailed transcript of above trailer.
Meanwhile, a few more Comic-Con links:
Teryl Rothery at signing table
has an interview with Amanda Tapping. She talks about Stargate Atlantis, SG-1 and the movies. Excerpt: MS: You just made the big switch from "Stargate SG1" to "Stargate Atlantis" this season; how is the feel of working on Atlantis as opposed to your time on SG-1? AT: Honestly, it's different. It's very different. I think that with the SG1 cast, we didn't act as seriously because we had been together so long. There was a lot of laughter and a kind of goofiness. It should be illegal how much fun we have... and get paid for doing it. With Atlantis it's fun. It's a different vibe. It's a little more serious. I still love going to work everyday. It's been so welcoming and its been very nice. It still feels different, but maybe that's because my character is in a different position so I have to sort of "step it up a bit". It feels like I'm playing a different character in some ways. I feel a little like a fish out of water.