Alita Battle Angel 2 is a cyberpunk action film on a Japanese manga artist Yukito Kushiro. It came out in 2019 and earned $404.9 million across the globe with a decent amount of crazy fans of Alita.

Will Alita Angel come back with another battle?
After the first part, fans are demanding for the sequel to come and hit on screens. After the first release of Alita in 2019, Disney took over Fox.
Now it is completely on Disney whether Alita Angel Battle sequel will come out or not. However, Cameron and Robert- Directors of the film said that there will be multiple sequels of the movie.
Accordingly, there are high chances that the sequel will arrive. It is pretty difficult to guess releasing date and year.
credits-imdb.com
What will be the plot?
In the first part, lost Alita is found in Iron city by Ido, a compassionate and dedicated doctor. When she wakes up, she has no traces of who she is and it becomes difficult for her to identify the world she is in. As Alita starts her new life in Iron City, Ido tries to protect her from her mysterious past.
In the sequel part, the story will jump into the year 2536, in a completely new world- The fall. There are no official updates from the side of the production house about the story of the sequel. But there are assumptions that the story will pick up from the end of the first part. There are many questions from the first part such as what happened to Alita? How the city is like? and so on. The second part will answer all the questions from the first part.

What will be the cast?
As there is no information available, if we trust our instincts we would say that many characters will return from part1.
Rosa Salazar will come back to play the role of heart of the movie- Alita. Christoph Waltz will again play the role of Doctor Ido.
Other old characters that will be seen again can include- Jennifer Connolley as Chiren. Mahershala Ali as Vector, Ed Skrein as Zapan, Keean Johnson as Hugo and Eiza Gonzalez as Nyssiana.
With no accurate official updates from the makers, it is tough to tell about the new cast who may join part 2.