Games will be severely split into sections. Think of The Hobbit becoming 3 movies, now expect that to happen to games where to get the full game you actually have to buy 3 games. We already have this a little, but I fully expect it to grow into $60 titles.
I also fully expect games to start being sold piecemeal. $60 for single player, $60 for multiplayer.
Honestly, I'm beyond shocked Activision hasn't jumped on this opportunity with Call of Duty. Sell either campaign or multiplayer for $40 piecemeal, or $70 'complete'. Either part with all future content for $60 or $70. I expect that games with find a way to creep up their price while trying to appear to the masses as cheaper, which this would 100% do.