I'm all for a reboot of this franchise. Make it the parody of law enforcement that it was intended to be. Robocop (which was inspired by the 'Judge Dredd' comics) was a more accurate representation than the godawful Stallone movie. At least if they consider this new movie a pseudo-sequel, they won't have to go through Dredd's origin again.
Hopefully if the reboot does well, there will be a sequel involving Dredd's equivalent of an arch nemesis, Judge Death. That would be very grim and gritty indeed.