So it turns out Corina was the mysterious "C" from Caitlyn's biography from 4+ years ago and it was not Camille as many people thought before (who were interested in her lore). :
Caitlyn Tirador Build, Runes, Counters (Patch 13.07) - OP.GG - League of Legends
These are all of Caitlyn's new visual rework skins - WIN.gg
Steam Workshop::Champion.gg League of Legends [LoL]