I think it's different than Heroes in that Heroes was clueless from the start. It had no direction and given the environment, it was only possible to tell one story and they told that story in the first season. After that, it went to hell in a handbasket. Heroes had three universe-breaking characters: Sylar, Peter Petrelli, and Hiro. The mere existence of those characters told me the creators had no plan going forward (and later, they admitted as much). Once the initial story was told, the showrunners paused and said... "Well, ****. What do we do with a character who can jump time, a character who can absorb every power through proximity to another person, and a third character who absorbs power through killing characters?" Uh, the answer to that is "Nothing. You guys ****ed up and should have seen this coming." True Detective is a much closer parallel to Stranger Things. The amount of care and craftsmanship in the details of each show - not to mention the standalone nature of the stories - makes it difficult, if not impossible, to turn them into a once a year series. I don't understand why they're making a sequel. Blech, American television.