And what about the Krenim Imperium? We saw at the end of "Year of Hell" that Annorax was again working on the simulations for time manipulation. Imagine what kind of novel that could create!
But he walked away from those calculations to spend more time with his family. Some interpret that to mean this is how history was changed to prevent the timeship from ever existing -- that Annorax decided to walk away and never finished inventing it. So that's the end of the story, not the beginning of another one. (And really, what kind of novel could
it create if he'd just reiterated what he did the first time around? We've already seen that story.)