rotating gamemodes

Hello guys i do not have that much of an expirience with forums so do not missjudge me, i was watching some of Necrit's videos on youtube and i came up with an idea, especially now that the rotating gamemodes are live. I wonder if Riot ever decides to make something like war games between Noxus and Demacia, Ionia and Zaun or something like that i believe that it would be an awesome thing to do and it might draw the attention to new players as well. I hope this idea becomes more than just words and i appreciate the time you spent on reading this.