Remember FvF PvP comes - there is no further need of the Klingon faction.
And why did the QQ kill the game? It was dead the moment it launched with zero content for a full faction. Grinding away hundreds of matches is not content - its laziness on the part of the developers.
You can't really say that the Fed missions are REALLY that well written and complex so that Klingon missions would take a long time to create. Given the tools I'm guessing a mission can be put together in under 3 hours - from scratch to finish - given the tools of course.