IMO we need at least a few more in-game quests

You know The Hunt is On quest? Rengar vs Kha'zix, I think it's brilliant. Which hunter is superior? Then there is the Battle for the Frejlord, which is also excellent. Who will rule over the tundra?

We need a few more Riot. Now that you have this bilgewater event going on, why not add some quests that are fun for the players, but not game-changing. Like since T.F and Graves are now comrades, when they are on the same team, have a quest where they have a race to be the first to reach 300 creep score, and whoever gets it first has a global taunt where everyone can hear one mock the latter.

Or have a Zed vs Any Ninja similar to the Rengar vs Kha one where the quest begins at level 18 and whatnot. If Zed wins, he gets empowered shadows where they last for an additional half-second, and if the ninja wins, they gain an extra 5 energy per second.

Just something along those lines, if you like this idea leave an idea for an in-game quest!