Christoph Waltz reveals that he would be willing to return for an Alita: Battle Angel sequel. Alita: Battle Angel is an adaptation of the popular Japanese cyberpunk manga Gunnm, created by Yukito Kishiro. The film, which was released in 2019, captured audiences' attention and sets up a potential franchise, but so far there has been no official movement on a sequel.
https://screenrant.com/christoph-waltz-alita-battle-angel-2/