Well fellow lore fans, I't looks like were getting a new champ form Zaun or Piltover this year
In Jhin's color text Q & A, A player ask who would be dealing with Jhin if he's going to Zaun. The response from Rioter bobo was: "1) Maybe, (only in passing) but he will be more a problem for VI, Cait and someone who can't be named at this time."
This is the confirmation in my opinion. Yay Piltover Zaun lore hype.
