I think it would be a good idea if they work more on Yasuo and Riven, not only for the fan services but because I honestly think that they both have really interesting and deep lore. An event or something should be enough with a trailer!
A League Player with a weeb name. 
yoshi27901 votesThere circulates a theory that Riven killed that important person (forgot his name). SInce her ult is WIND Slash Which is a WIND ability
EWBS Mithilesh1 votesits not a theory. its a part of in-game interaction when yas and riven kill each other. its also stated as a part of Yasuo's lore.
yoshi27902 votesI didn't know it was confirmed, my bad.
Ebonmaw Dragon1 votesI think that the goal of the LoL lore is to do that with all of the characters in the game... not only a few of them. Of course that such thing will take time, but, whatever.
