What rewards will be causing these cranial concussions, you ask? BioWare posted a list of the Season 9 Ranked PvP rewards, separated into different tiers based on a player’s final rating.
There are a lot of interesting but somewhat expected goodies here, such as battle flags, portrait flair, titles, frame decorations, and — most importantly — tokens. These tokens can be spent on desired rewards, so if you want your holo-rancor mount or stronghold trophies, you know where to go.
Source: SWTOR