When will you actually become Riot GAMES?

Honestly I get that the games part is just a title. They only have one game out right now and no the board game does not count. Riot Games has been riding the same game for 9 years now. It has been very successful, but What I want to know is at any point, ever, in the life span of riot games, will they create a new game? Or are they just going to wait for League of Legends to die and just die along with it? Cuz honestly, while the game is great. Ive been playing it for about 5 years now, but when is Riot Games going to make an actual new game. It would be really cool if their client had more than just League of Legends on it. Honestly in my opinion, it would be really cool to have a play through of all the lore for each individual champion, in the style of a game like dark souls or something.

I just do not get why Riot Games wants to sit on one successful game for God knows how long. I would hate to find out that Riot Games is a one hit wonder games studio. Please, show us what you are made of and stop making new champions. Start making a new game.