Unless something's changed recently, it happened, but also it's also not terribly relevant. Phase 3 was a failure, so they hurriedly rushed to write everything from it away. Cyborg Noodle? Killed offscreen by regular Noodle. Her head was turned into a vase or something and stored out of sight, out of mind. That's how they generally treated stuff from Phase 3. Since the 2020s or so, though, they have been more willing to engage with stuff from that era. Cyborg Noodle came back in Phase 5, and has been around doing stuff in the background since and >>150271353 costumes from that era make it into collab stuff, so its not entirely forgotten.