I call bullshit on headlines like:
Election looms -- and only Harper or Dion will survive
Harper's fate aside, what happens to Dion if the result of a Fall election is a smaller Conservative minority? Well, Dion can say he made things better, and that he has made the Libs negotiating position stronger (esp. if Harper must appeal to two opposition parties for support to get anything passed rather than the current one).
He can also look to precedent that says Lib leaders get two elections before they're tossed (a la John Turner).
Furthermore, there is still no mechanism by which you can easily remove a Liberal leader, and thanks to some very stupid decisions made in 2006, the party is still committed to an expensive, drawn-out, archaic, and exclusive delegated convention should any attempt succeed. Take this route and the Libs will stay divided and broke well into 2010.
PS. Not that I'm saying a Tory minority is the most likely outcome. In fact I'm still not convinced Harper's going to drop the writ anytime soon. There's been a fair bit of fear and loathing among the Tories natural allies re "breaking" their own law to get to a campaign. I'm still of the opinion we're all here until October 2009.