So, as I see it… this is what wound up happening when Sora inverted her shield on Starbo: it held… at first, yet gradually took the worst beating of its life in doing so. But as the last explosions sounded, the shield, having already taken immense pressure from containing a literal world-burning light at that point, exploded—and Sora was caught in the blast, at point-blank range. And with the war done… just like Nath, the world has no use for her anymore at this point in the war-torn world’s period of time, so into her 10k-year sleep she goes. I’ll leave how she landed, with whom, and the other nitty-gritty details up to your guys’ imagination.