Now what I could see reasonably happening would be reducing the display to 3/4 screen and having the next singer up poster at the bottom 1/4 of the screen. Or possibly scroll across messages there.
But seriously in the future, I can see a scanner reading request slips of a specific format.
(Buck Rogers stuff)
10 years from now, what about a hologram kj with a random celebrity hosting. say garth, or shania