Character interactions

Any plans from Riot to add more of these little gems in the game? I find that they add a lot of flavour to the game, and it'd be nice to see more champion banter, either between allies or enemies. I understand it might seem daunting at first, but given the state of the meta, wouldn't it be easy for Riot to determine that ADCs should probably have a couple lines to taunt other ADCs since they are likely to be matched against one-another? On the flip side, we have some characters with standing rivalries (TF/Graves, Diana/Leona, Viktor/Jayce) which aren't even acknowledged on the fields of justice!

Is there any way you can contact your voice actors to record a couple lines so that the characters feel a little more alive? pls? :D