This post-apocalyptic universe has two central storylines happening in it, and while The Walking Dead doesn’t have a literal galaxy of narrative paths to choose from as Gene Roddenberry’s creation does, there are still many thousands of other stories that can be told within these zombified parameters, and Fear has already moved the action out to sea and into Mexico, so international projects aren’t off the table.
Some of those ideas might allow for crossovers, too.
While I’m not clear on the “three times” Josh Sapan was referring to, since there have been five live-action Star Trek series (not counting Discovery) and two film franchises, his meaning is clear.