Whoever manages to change the nature of content display on the Web from a search problem to a recommender problem will reap tremendous rewards.
While this may still look like a technology in search for a market (except the online retailing), my personal bet is in the same direction.
The other shift I think content consumption will see in the future is in its visualization. We are currently used with ‘linear’ text consumption patterns (and the optional ‘disruptive’ open link in new tab’). But as amount of created content has grown exponentially, we’ll have to figure out a different approach.