Lit summoner's rift

Ok this idea is a simple one but you can probably build off of it into something interesting. Imagine summoner's rift being completely lit up, vision everywhere for both sides. Wards create the fog o' war and they regenerate faster. Its still a battle of vision, just reversed, and ward control will have an entire different meaning. In the beginning you'll just see each team creating tunnels of darkness from their base with wards on the map and you wont be able to tell which champ is in which. Vision ults like nocturne's can be reversed, basically lighting up an entire portion of the map and TF can darken it. There's probably a lot of flaws with it right now but it's cool enough as an idea to run with it, tweaking things until it works.