I am "possibly" going to be very disappointed!
When i heard that missions are coming to league i thought and still think (hopefully) that we are always going to have some missions to do in order to earn things like key fragments,icons and ip. But now i am starting to think that this is just placeholder for events that we had all this time but is now instead of league website inside of client itself. Like coming up event with new Riven and Yasuo skins you will need to buy some pass for RP in order to gain stuff...so disappointed if this is what "missions" are really going to become.