Have some nice rewards for every 50 or 100 ranked season wins. Stubs/Packs/etc
Battle Royal with pink slips. Winning team gets to choose 1 player from the team they beat to use in the current run.
Uncapped XP. Prestige 2, Prestige 3, etc...
Moonshot BR. 9 wins gets reward. All Diamond offense. All silver and lower pitchers. Lol at this. Would be fun tho.