just a suggestion for endgame.. allow players to enter an arena of 15 players no level cap. the most skilled one wins. maybe think of mechanics to allow lower level players to beat the higher ones.. like double damage runes, haste runes, or strategic landscape for pvp

the player who currently has highest win count has temporary player aura effect giving the distinction that he is highest rank in pvp. he keeps the aura as long as he is at the very top of the ranking.

there would be an in announcement board where a list of names of players who are top winners pvp.

for players who reached a milestone wins: 100, 1000, 2000, 3000, so on..
lesser aura is also given to players who reached 100 wins so on.. they keep this aura and it is permanent and others can see it even outside pvp arena.

note: the lesser aura and the pvp champion aura mas be able to visually stack or mix together. when the player is no longer the highest rank in pvp the chamion aura is removed, but they keep their lesser aura.