New Idea for a 10v10 Map (Multi-Tiered Summoner's Rift!)

Unfortunately, my art skills are a little lacking at the moment, so I have nothing to provide in terms of images, but imagine if you will, TWO Summoner's Rifts, stacked on top of each-other, perhaps in the form of an old warehouse, with a few access points to climb stairs/warp to the top, you could even add some new buffs in place of the 2nd red/blue creeps.

From what I've gathered, Riot was throwing around the idea of a 10v10 back when Dominion was released, but they weren't quite sure how to implement it while still keeping the core fun of the game intact.

Summoner's Rift has stood the test of time, it is THE map for League, however, I think with more players, even more strategies and opportunities to shine as a team could really take hold, so, why not double it? (Of course, add some minor graphical/texture changes, similar to the Bilgewater event to make it stand out on it's own).

It'd be a rough technical endeavor, but not for Riot, they have the programming ingenuity, and resources to devote to such a task.

So, what do you think? Any additional ideas to add-on? Something else that you think would be better? I would really, really love to see a 10v10 map finally come to fruition! :D