Now that the battle has been won, the next phase of the battle is about to begin. Alita is still alive, but she's not in the voyna. She's in the box with her brain. The box is still intact, but it's covered with anti-nanomachine polymers. The voyena is still standing, but its safety features have been reinforced. The next generation of infantry has been developed in anticipation of the next war. A ray beam is now cutting through the crowd. The only thing that's left standing is the core of the tunguska reactor. This means that there's still a lot of energy left in the universe, and that the Jovians can use it to their advantage. They've just got to get the heck out of there ASAP.