For anyone with children, it can't escape them that their children have completely different screen time habits than they did as children. Their media is on demand, and they can watch anything they want. They can binge-watch anything. They will probably wonder why on earth we waited for our tv-shows to air on a big box on the wall. Scheduled television and TV-channels are definitely the new radio.
With a generation that is growing up with influencers who create their own fame, they will be much more inclined to follow people who create great or interesting content rather than just people who the entertainment industry has chosen to highlight, for better or worse.. Movie start will probably still maintain a celebrity status, but even that will become obsolete as more and more services provide "at home movie makers" the possibility to create quality content. In short, influencers will take the role of mainstream celebrities. Just look at Ryan from Ryan's Toys Review's, Pewdie Pie, Casey Neistat, Jenna Marbles etc! They have a large following and are famous due to the hard work they put in creating content that builds a relationship with their audience. In the future, the host services similar to Youtube (which too will die), will also become more focused on quality content rather than quantity; finding a more efficient and fair way of paying their artists. Our children may be more forgiving of bad content, but our grandchildren will not reward it with views.
Our grandchildren won't sit and watch CNN. They will not, in fact, watch any mainstream news media. As channels like The Filip DeFranco show and The Young Turks are growing, their online business model will spread like wildfire. Both are growing immensely, stream online, have a cult following and are independent. Chanels with specific topics, political profiling and smart journalism with an unpolished surface will attract the next two generations a lot more than mainstream media which isn't as open with its biases and is less about the conversation and more about a narrative. That is why news organisations like CNN are trying to stay ahead of the game and have bought Casey Neistat's company BEME, which will grow in to an interactive news channel that will be provided content through its following being its eyes and ears in the world!
Digital currencies will make it to the mainstream market, and they will succeed!
Companies specialised in making apps
In a generation that will learn how to code along with their ABC's, be aware of how valuable their data is, and picky about what functions their hardware have: our grandchildren won't rely on someone to make that training app that they need, they'll make custom apps themselves, adapted to their own needs. They will most likely also be very in to SDK's for most of their hardware.