At the end of Star Trek: Deep Space Nine, Lt. Commander Worf left Starfleet to become an ambassador to the Klingon homeworld of Qo’noS.
Star Trek: Deep Space Nine ended in 1999 with Worf having chosen to leave his position on the space station to become the ambassador to his home world. But he reappeared in his regulation uniform for Star Trek: Nemesis, and no mention was ever made of his new assignment on Qo’nos even though fans wanted to know what happened to it.
Now, Star Trek #2, the second installment in IDW Publishing’s series with Captain Sisko at the helm of a new ship with a new crew, offers an explanation for the Klingon’s move. [via Comicbook] According to those behind this edition, Jackson Lanzing, Collin Kelly, Ramon Rosanas, Lee Loughridge, and Clayton Cowles, the Klingon was serving as the ambassador when his former commander, Captain Sisko, reaches out to him for help.
Star Trek #2 explains that Worf rejoins Starfleet to help Captain Sisko.
Sisko is trying to locate a ship with a weapon that can destroy gods, and his search takes him to the Klingon homeworld. He knows he can get some answers from Worf, who is happy to help. In this book, thnigs aren’t all right on Qo’nos as Chancellor Martok is wrapped up in red tape, and the Kahless double is primed to take over as the true emperor.
When Sisko goes to Kahless for permission to visit a quaranted planet, Kahless refuses. But Sisko has never really been one to take no for an answer so he asks Worf to join him which leads to Worf abandoning his role as an ambassador to join Sisko’s crew full-time aboard the Theseus.
As we know, comic books aren’t canon, but at least Star Trek #2 provides a plausible reason why Worf left his homeworld and returned to his former duties. Perhaps Star Trek: Picard will offer us a different explanation when Michael Dorn’s character returns in the final season of the series. If not, this one is as good as any.