It’s an interesting thing, because how much of a chance do you give new would-be blockbuster franchises to develop? The Fast and the Furious didn’t have $1+ billion blockbusters right away and the MCU wasn’t what it is now in the beginning. Game of Thrones didn’t start as a global phenomenon, it took time to get there, time it was granted. The Mummy killed the Dark Universe right away. Alita wasn’t a complete flop, critically or commercially, but its box office didn’t demand a sequel either.
Article source: https://www.cinemablend.com/news/2491715/alita-battle-angel-actor-thinks-there-should-be-more-than-one-sequel