this half is gonna end in 2 episodes.then we have more episodes after it they wont let kirito vs quinella be just fighting next ep and then we wait till summer or even later to see the end of it...whole fight is gonna be in this episode
Holy crap at this rate, even if we get the last fight between the administrator and Kirito in this season, it will be 4 more seasons before Alicization arc finishes! Alicization Invading, Exploding, Awakening, and ending with Lasting.
He uses the Blue Rose sword. If you read the light novel, the sword temporarily regenerates into a full sword, they have a Eugeo-Kirito spiritual connection moment, they kill the Administrator and the Blue Rose sword breaks in half again.