The previous speculations for Yone to become the new League of Legends champion seem to have come true according to the official voice lines for the new Thresh skin, alongside a couple of other hints.
TNS: "A League of Legends game mode, Arena, will return with some major changes that may breathe some life for a stagnant game."
ESTNN writes: "Hwei, LeBlanc and Ryze stand above the rest as the strongest players in the League of Legends 14.8 mid-lane due to substantial buffs in their scaling, base damage and crowd control (CC) respectively."
ESTNN write: "Our updated guide on the latest champions coming to Summoner's Rift."
