Here's what we know: people are online, they watch video online, they spend money online. Therefore, video producers and advertisers are going into overdrive to figure out a model that works.
Mark Cuban quoting (I think) Craig Moffett of Bernstein Research:
Ironically, we are headed down the same self-destructive road for other kinds of traditional media,as well. Five years into the video-over-the-Internet revolution, we have learned two things. First; consumers won't pay for content on the web, so it will have to be ad supported. And second; it won't be ad supported.
We've got the video business model figured out, right?