I came late to this party as far as Twilight is concerned. I don't believe that Twilight will 100% end. There are always groups of hardcore fans. Star Trek & Star Wars are the perfect examples. It's just a matter of the next generation discovering it and loving it as much as the last. And the hardcore fans will keep it alive until that happens. I agree that the amount of merchandise available for BD1 & 2 was a lot less than the prior movies, but there is still a demand for it. It may take a few years, but it will resurge again.