I hope Conan makes a deal with Fox. I genuinely believe that the young viewers (you know - the ones advertisers covet) will flock to him and that Leno and Letterman will split the older viewers. But you know, I hope that enough people who were lukewarm on Leno before will be so annoyed with NBC that they watch Letterman instead.
Personally, I doubt I'll watch the Tonight Show any time soon. I know better than to say "never," but I don't intend to watch that show until Leno has properly retired and they've banned him from the building.