1. I think you will see more ad placement in shows.
2. You could see a return to the days when actors and hosts did the commercials right from within a scene - stop the acting, commercial, back to acting (this is done a lot on radio).
3. ad "revolution" - with more creative ads, sparking conversations, entertaining series-plot-ads, ads with call in prizes, Internet sign-ups, etc.
4. ads that pop-up and fade in the corner of a screen while the show is running. You see this one a lot already - usually when networks are advertising other shows.