User blog comment:Awesome Astrid 02/HTTYD 3/@comment-7628730-20140912200716/@comment-24018437-20140918192032

Of course each movie is a chapter. Its not a TV Series or book. And DeBlois and Cressida Cowell already confirmed it will be a Trilogy.

I know some people have probably read about HTTYD4, but These are just fan-made rumors spread by hopefull fans. There are no current plans for a Fourth film. And if you think about...What should the Fourth film be about? The Dragons leave in the Third film, so what Makes "How To Train Your Dragon"...Well...How To Train Your DRAGON will not be there anymore.

However, I do believe a spin-off film is possible. They did it with Puss from Shrek and the Penguins of Madagascar, so it is possible it Will happen with HTTYD too. Maybe a bit of Toothless' backstory?