User blog comment:PerhapsTheOtherOne/A New Theory on the Legendary King Ghidorah/@comment-25285745-20141130165949

There is no way to tell what Legendary will decide to do. I can almost guarantee Ghidorah will not be an underdeveloped Yamata no Orochi or the fusion of three genetically engineered pets from the future, and definitely not the mind slave of sunglasses and vinyl jumpsuit-wearing aliens. There is no doubt that Legendary will develop a new origin for him, but what is unclear is how closely this origin will be tied to past origins. Legendary gave Godzilla a new origin, but still based it off of his previous iterations to remain faithful to his character. There is no denying that King Ghidorah's most popular origin is some kind of alien being, it was his origin in the Showa series, Rebirth of Mothra III, every Godzilla video game ever made, and in the IDW comics. It's safe to say Toho prefers this origin. But since we can assume Legendary has free-reign to do whatever they want to the character, they are going to weigh their options. I have no doubt that if they can craft an origin for King Ghidorah that keeps his extraterrestrial background while not expanding the new films' universe further than it needs to and compromising its grounded tone, then they will use it. If they cannot find a way to make him an alien and reconcile it with their vision for the films, then they will create a new terrestrial origin. We have no say in the matter and no idea what Legendary will choose to do, but seriously, we need to stop automatically discounting everyone else's theories and ideas because they are "unrealistic" even though the very premise of giant monsters existing and having lived since prehistoric times is unrealistic. There are still four long years of waiting ahead of us, and frankly I think everyone is getting very unreasonable and rude about this.