Though the Klingons have resolved their differences with the Federation, the Kazon just faded into the background and are barely considered a blip on the screen in Star Trek history. It's doubtful ...
Of all the TV Treks to date, "Star Trek ... the Borg and even the Kazon (Klingon-esque antagonists so lame that "Voyager" quickly left them behind) provide a gateway to "Trek"'s wider universe ...