

Looking at the Simpsons Wiki it says he pops up a few more times in crowds, plus an Artie episode where all his characters show up (I think he makes a joke about how nice their voices are).
He does then show up properly in much later seasons, so I guess seldom appears.













I mean… Yeah.
But also it’s a reunion special. Sometimes you get the “retrospective reunion” like the Friends special. Sometimes you get the “where are they now”, see Monk or Psych.
In recent years we’ve got the full spinoff revival like Fuller House or Girl Meets World. And in the past year we’ve got the true revival, like King of the Hill or Scrubs.
For enough money, sure maybe we get more, but I never expected more.