7) A Toothless Romance
This one hasn’t been confirmed yet, but it’s rumoured that Toothless will fall for another member of the Night Fury dragon breed in the next film.
Though this is a fairly standard subplot of many animated sequels (Ice Age 4, Toy Story 3, Puss in Boots and others all gave supporting characters a love interest), the rumour is particularly interesting because Toothless is currently believed to be the only Night Fury left in the world. In a movie that seems to even darker than the previous one (in ways which we will explain shortly), this subplot will hopefully provide a welcome relief from the drama, as it focusses on the love life of cinema’s cutest dragon.
This plotline will also presumably be tied in with something else that we know the threequel will explore…