New Game Mode: Operation Old School

Riot contact me about this idea please to know how hard it would be. I would like to purpose the idea of a new game mode or like a week of the old school map and items I think season 3-4 would be the best season for memories to bring back. I foresee all the champs reverted to how they were and the new champs having the same stats as they do in the current patch the items brought back to the game and changed to how they were in the season picked to bring back, and lastly the old map would be the icing on the cake for a little bit of nostalgia to rekindle a lot of love for the game for a lot of people and make us remember why we're started playing in the first place to have fun! :)