What would mulder and scully do when they retire?
William got a scholarship to Stanford for baseball and basketball, so they sometimes trek out to California and sit next to the Van de Kamps in the bleachers, cheering him on.
Both write a lot, and sometimes make the occasional appearance as experts on one of those talking head programs after saving the world from that alien virus kerfuffle a few years back.
They have chickens, and a barn cat who gave birth to a litter of five before they had her spayed. They kept two of the kittens.
They take Daggoo for long, meandering walks around their property and the surrounding acreage.
They occasionally guest lecture at Quantico. Miller and Einstein and a handful of their students and old colleagues call for advice on this case or that profile, allowing them to relive the excitement of the job vicariously, without the twitch of an itchy trigger finger.
They’re happy. They’ve managed to make it to old age in spite of themselves, saving the world and each other in the process.