User Requests
With all the removed content in the game or files that never showed up in the official releases of League of Legends, I believe that Riot can fix this with allowing users to change the game how they want. What I mean by this is to be able to play older maps, use removed items, use old splash arts etc. Though this can't be mixed up with the current game maybe there can be a separate client for this, or it can be added to the pbe.