But how much more different than Fargo is Dredd? He looks like him and his doubts seems to stem from the fact that Fargo didn't want the totalitarian rule to last forever. A clone is not necessarily an exact copy, but why should I care about the character when you can just produce a new person from the predecessor's germ plasm and get the same appearance and many of that charcter's traits? The fact that Dredd is aging along with the comic is a bit original, but it becomes more and more silly as the time goes by. He is over 70 years old but can more or less function like an athlete.
It's a science-fictional future. Given the level of biomedical tech established even very early in the series, which is presumably advancing along in real time just as comic book publishing is in our world, what's 70? It's nothing. People in the real world living at age 70 today are healthier, more active, and younger-looking then their parent's generation was at the same age. There's not much of a stretch of imagination to think that 120 years in the future, people might live even longer, and look younger.
Afterwards when I was thinking about what I'd written in that earlier post, it occurred to me that the real source of your anxiety seems to be some hand-wringing over what you imagine as a very real, potentially imminent, 'death of Dredd' story. Why would the folks at Rebellion decide to kill off 2000 AD's most popular character? The only character to appear in 99.9% of all issues published to date (including annuals and specials), and the only 2000 AD character to also star in his own self-titled comic? It's like killing the goose that lays the golden eggs.
Yes, we've seen that sort of temporary sales-goosing technique used by Marvel and DC for their top characters, and sometimes it kicked off an extended arc of related stories stretching on a year or two, before the 'death of' character got resurrected. I guess the existence of clones with Fargo's DNA bugs you since it makes it easy to at least find a convincing fake to pass in the story for Judge Dredd. 2000 AD's readers don't seem like they might go along with some obvious, 'gimmick' attempt at temporarily boosting sales, but as long as you could invoke some interest in a well-written story, I guess they might be patient enough to follow it through its various twists and turns. I don't think any 2000 AD reader's going to be fooled into thinking it's anything like a permanent death.
I'm not sure why they'd want to do that again, since they've already explored it through the Judge Kraken story.