While speaking with The Hollywood Reporter about his upcoming horror film "Demonic," Blomkamp briefly touched on what he'd want a "District 10" movie to be like, and his vision was somewhat unusual for a sequel. "I think the approach of the first film is correct," he said. "I think it would still be as stripped-down and bare bones as we could make it." Given that this is the exact approach that "District 9" took, it's a little surprising that Blomkamp wouldn't potentially take advantage of a larger budget and go all-out with "District 10."
However, most of Blomkamp's output, with the notable exception of "Elysium," have been lower-budget films. Given the spectacle, special effects, and action he was able to create on a smaller budget with "District 9," as well, it does make a certain amount of sense that Blomkamp would feel more comfortable following a similar pattern with "District 10." Still, Blomkamp said nothing of when fans could expect to actually see a proper sequel to the 2009 science fiction hit, so it all seems to be hypothetical at the moment.
Regardless, it seems like Blomkamp has thought about what he'd want for a "District 10" film just as much as fans of the original, and that is definitely an encouraging sign — if nothing else.