Possible UI Concept - Neon Showdown

I was playing around with an idea for a UI concept in photoshop. What if there was a game in the same genre as Quake and Unreal Tournament that had no overlay HUD elements but instead relied on nothing but fully diegetic, spatial ways of conveying information?

I came up with the idea of Neon Showdown - a competitive arena shooter set in a Vegas-like environment jammed full of neon signs and giant screens where all important game information was displayed in a dynamic fashion. Helicopters flying above the action can use their spotlights to highlight interesting objects or adversaries with special powers (like the quad damage in Quake).

Skillful kills could be displayed in slow-mo-replay on jumbo-tron screens for all players to see.

Might look something like this