Robert kirkman has stated that the upcoming Walking Dead spinoff will not only be a completely different story from the original show and the comics, it’ll also have a true time progression. Meaning it’ll start out as a “prequel”, but it’ll soon get into where we are now in Walking Dead, meaning the zombie-filled world.
“From the beginning of the show one thing we’ve heard is, ‘What’s going on over here or there.’ So the intent of the new show is to expand that world and show another corner of the United States and what’s happening there. The timeline is taking place a little bit earlier than the original show. Rick Grimes woke up from a coma and was like, ‘Oh, man, zombies, weird!’ We’re going to possibly see that unfold a little more in the other show. But I wouldn’t call it ‘prequel’ because the entirety of the show is not going take place before [The Walking Dead]. It will eventually form a path running concurrently.”
But don’t think that this will become two shows doing the same thing. They’re working hard to ensure it doesn’t become repetitive or derivative.
”One thing that we’re doing with the new show that we’re trying with everything is it’s not derivative,” Kirkman added. “It’s standing on its own. You can watch it by itself and get your own experience. But if you are watching both shows there are things like, ‘Oh they discovered this, or they discovered that in a different way.’ There are a lot of things about The Walking Dead world these characters have to learn or figure out to get by. And there may be some things that are discovered in the companion show that haven’t been discovered in the other show yet. So there could be like a thing where, ‘Oh, they encountered a zombie in season 4 in The Walking Dead that could do this and now we know why that was.’ So we’re going to be doing things like that are going to be pretty cool, but for the most part [the two shows] should be able to stand alone.”
“And then we’re going to cross it over for an Avengers movie and it will be great,” he joked.