The rewards for reaching and maintaining top 500 this season are Numbani themed, seen below. The season will begin on May 31 at 5:00 p.m. PDT.
Note that these rewards are only rewarded if you stay in top 500 - as of season four, there's no more just hitting top 500 and letting yourself decay to still obtain the rewards, so stay sharp.
Season 5 Competitor Player Icon
Season 5 Hero Animated Spray:
As always, playing in competitive awards competitive points used to purchase Golden Weapons for 3000CP total. Here's the breakdown for making various ranks in Season 5.
SR 1-1499 (Bronze): 100 CP
SR 1500-1999 (Silver): 200 CP
SR 2000-2499 (Gold): 400 CP
SR 2500-2999 (Platinum): 800 CP
SR 3000-3499 (Diamond): 1200 CP
SR 3500-3999 (Master): 2000 CP
SR 4000-5000 (Grandmaster): 3000 CP