I think I understand what's going on in Take Over #Worlds2020

The protagonist is inheriting the legacy of former World Champions, one by one

SSW Mata, Thresh
SSG Ambition, Jarvan IV
FPX Tian, Lee Sin
SKT Faker, Faker

Taipei Assassins logo etched into the Caitlyn(?) gun

Looking for the reference of other World Champions now

Xpeke, the winner of Worlds Season 1, on Kassadin

By rule of elimination, the Xayah must be Jackeylove of iG, the winner of the 2018 World Championship

Yes