Re: Late Atlantis Missed Opportunity
Sadly I can't call it a missed opportunity. We probably would have seen them again, but the series got cancelled.
Indeed, I think the rough season 6 outline Mallozzi posted on his blog a couple of years ago indicated there were plans to bring the evil Asgard back.
"Internet message boards aren't as funny today as they were ten years ago. I've stopped reading new posts." -The Simpsons 20th anniversary special.