Chase United Explorer card: Are there any more bonuses/rewards after the annual $20K spend goal?

I was able to hit my $10K/20K spend goals this year and get the $100 United credit and 10K miles discount, respectively. Does anyone know if there are any additional spending goals available on this card?

I know they often have the monthly/quarterly "mini-goals" to earn additional rewards, but I'm also interested in the bigger/total miles rewards