The fallout from this sees Nanoha and Fate waver but end up siding against her, whilst the Velkan Knights have a worse time of it and either side with her entirely, or they take the more angsty path of splitting there. Nanoha and Fate are then charged (by an admiral who had up to that point seemed to be the big bad of the series, who had made it seemed more plausible to follow Hayate) to take down Hayate (in part due to making up for not-so-minor rule breaking in following her commands up to that point), who by this point no doubt has some grand plan worked out that's been growing over the series. Nanoha's side gets an early advantage, but Hayate is able to escape and is forced into an evil Book Of Darkness-related pact to make her stronger. This leads up to the final conflict, in which the evil-but-not-evil admiral from before concludes that it's too dangerous to have such powerful aces who could go rogue and orders an Arc En Ciel-type assault on the battleground where Nanoha, Fate and Hayate are. After their own twists and turns (add your own details in for specific fights, results and casualties) leading to the defeat of Hayate, you're left with a bunch of choices for what happens with regards to the Arc En Ciel barrage, Hayate's own plot, how evil-but-not-evil admiral gets his cumuppence, and the eventual fate of the main characters, which will no doubt manage to be fairly fluffy.