Harry Potter was a smash hit about a boy discovering he’s a wizard and going to school in a magical world full of wonder and adventure. Twilight didn’t hit quite that high a note, but the story of a teenage girl who learns her classmate is a vampire and falls in love with him did quite well. The Hunger Games popularized the dystopian genre with a bow wielding teenager stepping up to survive death games, have angsty romances, and fight the power.
As far as I can tell, nothing has quite hit that same kind of high since and it may be awhile until the next truly big wave. But if it were up to you, what would the next big thing be about?
Smartness, and achieving goals that help you do well in life. Popularize Smartness and work ethic. Like Big Bang Theory but more geared towards teenagers, and make the smart people look cool not dorky. Highlight how life turns out when you just keep making stupid decisions, and don’t understand how big of a tool motivation is in life.