When are challenges coming to League of Legends?

Completing objectives has been a part of the core League of Legends experience for some time. Events in League usually bring missions, which are a set of goals during matches that yield specific rewards when completed. This system leaves some gaps to be filled, however, since these objectives only come and go during events.

Whenever a new set of missions becomes available as a part of an event, most players try to complete as many of them as possible to unlock all the available rewards. They are a decent way to make players engage more with the game, and League is scheduled to receive a new wave of permanent challenges.