(Does anyone) think this will (stop) any further talk within (the strip) of ...
1/ his slowing down
2/ any potential retirement
/ Only if the writers choose to do so. Dredd's currrently young on the outside and old on the inside; like Carol Vorderman.2
/ Yes. The limited information readers have been given about the technology suggests that Dredd could, in theory, continue in his job indefinitely.3
/ No. From the perspective of the strip's fictional reality
, there are still a small number of scenarios where Dredd could die a violent death in circumstances that preclude medical intervention.
From Tharg's point of view
, there are a small number of scenarios where the death of the character might be an option.