CUE should have a lighting option called "Screen Sampler" or something like that. What it would do is look at the colors on your whole screen, or quadrants, or edges, and translate that to your RGB lights. This would create an ambient, reactive, and immersive experience. I believe Cooler Master is releasing similar software called MasterPlus+ soon.
This is what the famous Lightpack does and what the new Logitech G560 speakers do. Also, possibly the Nanoleafs. Also, the lesser known Ambivision, Ambiscreen, and DreamScreen. A Lightpack 2 is supposed to be coming soon. And Asus is supposed to be releasing something similar called the Asus ROG Terminal.
I think Corsair should also release a "back of monitor" Lightpack style device that works with gaming PC's and modern consoles. Ideally, it would work with USB, HDMI, and DisplayPort and be able to connect multiple devices at once. The problem with the Lightpack is that it only works over USB with PC's. And a problem with other competing products is that they only work with HDMI while many if not most PC gamers use DisplayPort cables.