Single player story mode
I believe that it would be a remarkable idea for a single player campaign/ story mode to be made and released into the game due to the fact that it would be amazing to see all that background lore be used in actual storytelling within the game.
though creating a single player campaign would be long it would definitely raise the amount of people who play this game by a significant margin in my general opinion.It would also set riot up to create DLC mission so they can get money out of creating this.
if there was a story mode it could potentially have cinematic where we could see new places which we have only seen pictures of in the lore and they can be brought to life and this could also build to new maps for single and multiplayer mode.
Overall in my opinion i believe that this game would be even better if it had a single player game mode.
p.s: riot if your looking at this please take my idea into consideration and thank you everyone for taking the time to read this.