Its no secret that streaming video games on the internet is immensely popular now due to the rise of services dedicated to game streaming like Twitch and Mixer. A combination of commodity capture cards and software capture solutions have made it easier than ever to start streaming. 
 As internet speeds increase (at least in some parts of the world) combined with newly available capture hardware, its only a matter of time before we start to see more of a push towards 4K streaming in the coming years.