As far as the topic of a District 10 goes, Blomkamp revealed that while District 9 focused heavily on South African history and apartheid, the sequel would likely be looking to events in the United States to draw inspiration from.
“There was a topic in American history that the second I realized that that fit into the world of District 9, it felt like an awesome way to do a sequel,” Blomkamp revealed.
No other information on the film has been revealed, so it’s unlikely we’ll be seeing or hearing much more until Blomkamp has further fleshed out his ideas for the film.
After announcing in February that he would be making a sequel to the sci-fi film, Blomkamp told IGN that the script is still being written, and that the reason for the long wait in between films was simply because they couldn’t figure out what to make.