You know what; to heck with it, let's chat about this.
So after seeing the Noxian stuff, you want a game about Noxus - what sort of game are you talking about?
Now understand that I can't say if Riot is working on anything, nor can I make promises if any of you come up with something astoundingly awesome - but let's have a convo about this now, while we're on the topic, to get a feel for what the Story, Art and Sound board population would want to see if such a thing were to ever happen.
Like - Sharjo mentioned RPG, Berserknurple says RTS, HeroGilgamesh (good name) says Skyrim-like, and OP FrontlineFury says Diablo-like. Tyrsfal wants something with PVP and territory control (unsure of the genre or camera type), and Tesla Effect just wants it to be lore focused.
Shall we dig a bit deeper?
Beyond just a genre, how game-y are you thinking? Singleplayer? Multiplayer? (The ever elusive co-op?) Game with an end, or not? You play as a champion, or you make your own character?
I swear I'm not asking you all to design it for me (promise I could design a dozen games before breakfast - any designer can) what I'm interested in is what this very particular microcosm of players wants.
So tell me. No harm in it, right?