Warning: While the plot details of Thor 3 are still unknown, this may contain *potential* spoilers for Thor 3. You have been warned.
At the end of Thor: The Dark World Loki sat on the throne of Asgard, having fooled Thor into thinking he was Odin. And ever since then, there has been speculation as to what would happen in what may well be Chris Hemworth's final Thor movie: Thor 3.
Well, given the hints that have been coming out from the project, all signs point toward the plot for the final Thor movie being the apocalyptic comic book story of Ragnarok.
But what is Ragnarok, and what can fans expect from a final Thor movie which features this as its central event?
1. Loki Dies - because Thor rips his head off
Well, he kind of had it coming, didn't he?
It's bad news for Loki fans everywhere, but in the build up to the Ragnarok story line Loki raises as army in collaboration with Thor and Odin's arch enemy the Fire Giant Surtur. Loki arms his troops with incredibly powerful weapons forged in the fire caves of Muspellheim (the same place as Thor's hammer).
After a long struggle in which Thor's hammer is smashed, he manages to repel the demon armies from Asgard. And he deals with his trouble making brother as above.
2. Asgard Falls - because Thor lets it
Unfortunately, in all that fighting with Loki, Thor shattered his hammer. Nevertheless, stripped of his most powerful weapon and carrying his brother's severed head, Thor goes to Muspellheim to meet Surtur.
The fire giant wants to know whether Thor wants a final battle, put Thor instead convinces Surtur to allow him to reforge his hammer. In exchange, Thor smashes down a mountain and lets Surtur lead his army of fire demons onto Asgard. The Norse Valhalla is consumed in fire.
But why does Thor allow his homeland to be destroyed?
3. Those who live above in Shadow - and how Thor kills himself
Thor has made a traumatic discovery. There are Gods above him, the Gods of Gods or Those who sit above in Shadow, who live from the life force of those in Asgard.
These über-gods have stitched time in a cycle, ensuring the fall and rebirth of Asgard, Odin, Thor and all others. Thor is insulted, and he heads for the roots of Yggdrasil, the tree of life. There he finds how the tapestry of time is stitched together by spinster women known as the Norns.
They offer Thor praise and rewards if he would leave the tapestry alone, but he refuses, severs the thread, and thereby cuts the endless cycle of time and ensures his own glorious death.
All in all, it is an awesome story line - and would be a perfect ending to Chris Hemsworth's involvement in the franchise.
But what do you think? Are we likely to see Ragnarok in Thor 3? Do you think it would be a good way to wrap things up? Write in with your thoughts below the line.