Dredd had a really poor advertising campaign. I think the first trailer only came out a few weeks before it's release when for other films it's months in advance.

I think the first footage I saw was actually a VFX breakdown that somehow made it's way into YouTube but it didn't stay there long.

There was a big campaign to get a sequel and Dredd on Blu-ray rose to #1 in the Amazon sales charts.

One of the executive producers, Adi Shankar, explained in a YouTube video that he appreciated the effort but the big problem was the box office returns. Everyone who invested made a loss, so no one wanted to invest in a sequel.

Rebellion were going to make a Mega City One series which may have had appearances from Dredd occasionally but I think that project has stalled.

Honor Among Thieves was so good. I couldn't stop geeking out over how much D&D was in it. They even cameo'd the freaking Animated Series party! It's nuts.

I think the worst thing about Dredd not getting a sequel is people who only see it will think he was just a generic action hero.

it is absolutely baffling to me that Dredd (2012) has a better review score than Judge Dredd (1995) (a far superior movie in my opinion).