One specific condition could guarantee Alita: Battle Angel 2's success, but Avatar reduces the odds of Alita 2 fulfilling the condition. Based on a manga of the same name, Alita: Battle Angel focuses on a battle cyborg, Alita, who gets revived by a doctor named Ido. As Alita sets out to find her identity and mysterious past, she uncovers a grand conspiracy that governs her world. Brimming with slam-bang VFX-fueled action scenes and poignant coming-of-age drama, Alita: Battle Angel is one of the better live-action adaptations of anime and manga.
https://screenrant.com/alita-battle-angel-2-happen-james-cameron-direct/