After "Seinfeld" ended: He famously threw away all his stand-up material after doing the very successful special "I'm Telling You For the Last Time", He was featured in a documentary called "Comedian" following his slow grind building up all new material, has continued touring with that new material, He immediately began touring with that new material (I saw a show and thought it was really good), He made "Bee Movie", He made "The Marriage Ref".

And other things too. Some of the stuff in that list was nearly as good as "Seinfeld", and some of it was terrible, but he's been around.