Themed Maps Based Off Of Summoners Champion Picks

Just a random thought that I had while looking at old concept art for Summoner's Rift from before beta. I think it would be quite a bit of work but would give players a more vested interest in the homes of their favorite champions. It could be really cool in adding surprise, variety, and fun. So the idea I had was themed maps. You would not be able to directly choose which one you wanted. Instead, it is based off of the overall champion picks. Similar to how the PROJECT: Minions worked. So, if there are 6+ champions in game from the same city, the map theme changes to their respective city. So, we could have themes for Bilgewater, Demacia, Freljord, Ionia, etc. It could also be flexed with skin themes as well. IE: PROJECT, Debonair, Pool Party, etc. During the loading screen, we could highlight the champions who helped activate it and the opening announcer could say "Welcome to Activated theme town name!"