About the AUEdit
In this AU, members of the Big Four are placed in the world of Mexican folklores and being apart of the Dia De Los Muertos/Day of the Dead celebration. As the Mexican holiday allows the departed souls to cross over from the Land of the Dead (or the Land of the Remembered) and back into the land of the living so they could see their families, while the living get together to remember and pay respects to their deceased family members and heroes. As the name implies, the setting usually mirrors The Book of Life, though this is not required. The same with Coco, as both films circle around the same holiday, music, the country of Mexico and traveling to the world where their ancestors reside in; as well as both films being apart of the fandom.
Usually the characters are placed as Calacas, skeleton souls that have passed on from the Land of the Living but live on in the Land of the Remembered/Dead, presumably fueled by the memories of those who knew of their legends and deeds when they were alive. The four are also featured in an Mexican setting, much like the Dragon Warriors AU with an Asian setting.
The Big FourEdit
Hiccup is seen as a Manolo Sánchez like character for the similarities between the two. Being raised to be a bullfighter (in place of his past training as a "dragon killer") by his father, but dreams of following his own path and doesn't enjoy killing what his family have killed for years in the ring. Toothless would be placed as a bull that Hiccup is fund of and sees as a friend. Hiccup's art skills could even have him doing dragon-styled Alebrijes.
Should Hiccup be placed as a Calaca that resides in the Land of the Dead, then some of the markings on his skeleton body would most likely be made to look like his red Dragon Racing face paint.
Since Jack is already a spirit he can easily be placed as a Calaca, that resides in the Land of the Dead. The markings on his skeleton body would most likely be made to look like the frost that appears on his staff whenever he touches it.
Merida can be cast as Maria Posada, due to both their spirited & rebellious natures. Both are beautiful young women that value independence and freedom, knows how to defend themselves and would not hesitate to stand up for what they think is right.
Being the Guardian of Memories and caring for both her fairies and the children of the world (and her mean right hook on Pitch) makes her La Muerte, the ruler of the Land of the Remembered. While being a mysterious, magical being, her colorful feathers and bird-like form could place her as a Alebrije from Mexican artisan folklore; along with her fairies (as they are placed as living creatures in the world of Disney's Coco).
Gothel's black hair, red dress and the Gothitch pairing casts her as La Muerte, while her 'truth' age serves as La Muerte's Old woman disguise.
Jamie, his little sister and their friends can easily serve as the Detention Kids. The children that Mary Beth told Manolo's story to.