I think Alias will last at least a season or two more. I mean, the ratings have stayed pretty steady all three seasons, at least to my knowledge, so if they were going to cancel it I think ABC would have already done so. There are many more stories to be told, and so I can definitely see at least two more seasons. I mean, we still have to find out what Sloane's endgame is, Syd and Vaughn have to get back together, Vaughn's father could come back, and regardless of whether Lena Olin comes back, we still have to find out what happens with SpyMommy. We also still have to find out what's happening with the Prophecy, and who Rambaldi really is. We also have learned next to nothing about what became of all the Project Christmas kids. I mean, for example, at the end of this season, Vaughn's dad could come back, and next season could focus a lot on what happened to him and why he's back, etc. At the end of this season they could also allude to Sloane's endgame. And next season (4) could focus on Sloane's endgame and also Sydney's part in the prophecy. Then, at the end of season 4, Rambaldi could be revealed or something, and all of season 5 could deal with his return. I don't know, I just think there's a lot of ways they could go with the show, so I think it will stay on for another season or two. If they did ever cancel the show, though, I would hope they would actually end the show and tie up loose ends, rather than just stopping production on some random episode and leaving the viewing audience to wonder what became of all the characters.
