Champions' Lore That still stands
The last champion to explicitly mention their joining the League was Hecarim, on April 4th of 2012. No champions after him directly reference their joining of the league, and most champions reworked (with lores updated) after that date (Sejuani, Karma, Trundle, Heimerdinger, Karthus etc) have had their references to league of legends removed. Could this mean their lore still stands? Would you want their lore to?
If their lore is standing, how are they dealing with the Resurrection of Shurima?