New Event (Like Bilgewater) concept.

Basically it would be a "Championship" between all nations and champs of Runaterra categorised, (For example: Noxus: Darius Draven ETC, Demacia: Garen, Quinn ETC ETC ETC) You should choose a faction, and play this special game-mode called "Faction Tournament"... it would have special timings so like " First day: Noxus VS Demacia Freljord VS Shadow Isles, Shurima VS Bilgewater, Neutral VS Bandle City," ETC and it would take like a week with different combinations? with different factions fighting each other. If you play this gamemode you can play champs ONLY from your faction and play against champs from the opposing faction (so like you choosed the Noxian faction, you get into the champ select, you can choose from Noxian champs, and fight against Demacian champs) As you play the matches, and win, or do things (Dragons, Barons, Penta-Quadra ACE ETC) you collect points for the Faction. At every days end, the winning factions get rewards (like bonus IP for a day, SummonerIcons etc). This would be an excellent Lore-friendly event I think! (because the lore says that the whole League of Legends, is "played" for between the faction, so they dont start wars against each other)

If you have any suggestions, please share them! :)