Foxy Mulder
It shows what happened with everyone afterwards. Liz makes a show for Grizz and Dotcom. Jack works at GE and gets a female assistant. Jena does a play on Broadway and accepts a Tony despite not actually winning and then flashes the camera. Pete's wife finds him and makes him come back home. Kenneth still works at for NBC and looks exactly the same like 100 years into the future and is interviewing Lez's great-grandaughter who is pitching a show which is essentially 30 Rock.

I forgot - Tracy's dad comes back from getting cigarettes and Liz actually calls him on his birthday.