The Asgardians are ready for war and an enormous battle erupts leveling most of the city; civilians have gone underground with the conflict approaching. Surtur's forces are just too much, burning through lines of troops. While LoKing tussles with Amora, the Warriors 3 and Sif cut their way through troops to engage Surtur. Once they reach him they are slaughtered, just incinerated in an instant. Heimdall leaps in stabbing Surtur in the back but is quickly tossed aside and killed as well. LoKing is able to blast Amora back with Odins staff getting the win over her he wanted so bad but Surtur is lumbering toward him.
Back on Hildstalf Thors eye open, now glowing orbs. Mjohnir flies to him and they take off to Asgard moving faster than ever before.
On the battlefield LoKing is giving it everything he can against Surtur, blasting him with Odins staff but the Twilight Sword deflects the attacks. Amora watches on knowing that LoKing has no chance and Surtur will have destroyed another society. Surtur blasts fire at LoKing sending him to the ground the Odin illusion begins to fade. Loki cuts his big last stand promo, Im Loki Laufeyson, King of Asgard and while I stand none shall take this kingdom from me
and so on. Thor is still rocketing past stars. Surtur lifts up the Sword and brings it down splitting the ground and sending lots of dust into the air.
Surtur looks around and calls to Amora. Check for enchantments, Amora fires out a spell over the area and Loki is detected trying to sneak away. Loki holds up the staff and Surtur breaks it in two before grabbing Loki and starts crushing him. Loki screams out as blood sprays from his mouth his skin turns frost giant blue (think great ape Vegeta crushing Goku but with fire). You rule this land scoffs Surtur. The bloody and burnt Loki sees something in the sky coming closer, he smirks No, he does.
ACT 3
BAM! Thor smashes Surtur in the side of the head driving him in the ground, the crippled Loki rolls from his hand. Thor flies straight up with lightning swirling around his hammer and comes down with a big smash to Surtur chest creating a shockwave that sends everything flying including magma from Surturs mouth. Surtur grabs the Twilight Sword and takes a swing at Thor who easily avoids. Thor fires down a big blast of lightning that Surtur deflects with the sword. Thor flies toward him and Surtur rears back with the sword and they have a hammer/sword collision that causes the ground below them to sink in (yet again think DBZ when big punches collide). Thor is knocked into a mountain from the impact. You thought that little hammer could compare with this, a weapon that was made with the most powerful metals in existence, enchanted with dark magic and meant to end civilizations. He charges up the sword and slashes with it sending a big fiery slice at Thor, who only gets clipped but it is enough to take the armor off one of his arms burning it and half his face (not Two-Face burnt but he is hurtin for certain, think injured Gohan fighting Cell which I thought of writing the next part). The rest of the slice splits the mountain that Thor had been knocked into.
Thor hears the voice of the energy boy telling him about the power he will gain and we get glimpses from some of the visions he had during the trials. Thor closes his eyes and clinches his fist, his hand begins to glow. Surtur approaches charging up his sword again. They both reach max power, Ka-me-ha-me-HA, energy battle.
Thor starts sliding back; Surturs body is ablaze as he puts everything in this blast.
Death of the last Asgardian belts out Surtur as his blast has pushed Thor to the edge of Asgard. Surtur grins as the battle is his but suddenly his ankles are ensnared by shackles of energy, they also appear on his wrists. Surtur looks around and sees the culprit Vegeta
mean Amora, ok he doesnt say that Vegeta part. Ive been saving a certain spell for you for a long time Surtur, for the day you die. I might not be able to kill you but I can contain you as the shackles grow brighter Surtur's flames including the sword die out. Damned Wit- is all he can get out before, BLAM Thor-Force through the chest.
Surtur drops to a knee, magma leaking from his mouth. The force of the blast knocked Amora away and the spells starts to fade. Surtur grabs the sword and holds it up but gets his arm blasted off, the sword stabs into the ground next to him. Thor with his body glowing with the Thor-Force flies up to Surturs face. Mercy Surtur weakly says, before Thor takes his head clean off with big blast. Surturs giant body slumps down.
An exhausted Thor drops to his knees, Amora runs over to check on him. Thor is no longer glowing and we see the Thor-Force healed him. Amora makes note of this and Thor quickly flies back to the ruins. He collapses in front of his brother who has been laying there dying during the battle. Now I would have Thor not have any energy left to save him but since Loki will probably be showing up in Infinity War then Thor is able to muster enough energy to save his brother before passing out of top of him.
We are in Thor's POV as he is awoken by the sound of a ship idling near by. Thor sees a large figure emerging from the ruins of his home. As he tries to stand he is pulled down, Dont move brother Loki whispers from underneath him. The figure returning to his ship with Tessarct in hand is of course THANOS. He is wearing the Gauntlet that was in the vault on his right hand. Thanos cracks the casing of the Space Gem off and the gem falls into his Gauntlet.
He would already have collected the Power Stone by killed the Nova Corps at the end of GotG 2, I imagine after they have completed the story in their movie similar to here they receive a distress call from Xandar but when they arrive the place is in ruins and everyone but Nova Prime is dead, then the Nova Centurions arrive thinking the Guardians did this but Prime stops them from attacking. Rider would join the Guardians as they go off to hunt down Thanos (leading to them showing up in Infinity War).
One of the post credit scenes for Spider-Man would have Thanos arrive at the Collectors museum to get the Reality Stone. He would look to trade for it; the Collector has things in his collection along with the stone that keep Thanos from just trying to take it. Collector not wanting his shop destroyed again and seeing that Thanos did bring with him a rare item or creature (the last of its kind), a trade would be made. But just like in Thanos Quest the item would quickly become useless/die/fade away leaving a pissed Collector with nothing. Maybe Collector gives the Guardians a super dangerous weapon to kill Thanos when they arrive on his trail. This would of course be used by Stark and Rondas Cap Marvel to kill Thanos.
So Thanos has 3 stones and no longer needs a ship because he can go anywhere with the Space Gem, he teleports off.
Who is that and where has he taken the Gem Thor yells at Loki. Someone you dont want to know and should avoid Loki mutters back. Amora was hiding and approaches the two, Loki tries to attack but Thor stops him. She saved us he notes, She lead his attack and cant be trusted, I should know Loki responds. Hes right I cant be trusted and for what I did I shall never return to Asgard, she turns to go But thank you for freeing me Thor she blows Thor a kiss and a little pink heart floats over to Thors cheek. She walks off heading to a portal to leave as Thor and Loki sit in what is left of the city. The final line could be one of a few from Thor: Looks like we better start putting this place back together, So, where is father? or Loki: Looks like we have a Titan to catch.
Credits
Maybe for a mid-credits scene we get King Thor closing the Ragnarok book but before he can say anything we get the return of the being that destroyed Earth. Could be the Midgard Serpent or something like that, fuck if I know. Thor 4 would feature King Thor killing the Serpent in flash forwards throughout the movie. He would also die but his death would cause the full Thor-Force to release bringing life back to Midgard and the Girls of Thunder would work to protect it.
For the post credits scene Amora is drinking in a bar in Alfheim. Suddenly the door swings open and a large man carrying an axe drops a giant beast on the floor Ive killed the Bugbear (or some other creature), where is my payment, the elves hand him money. He sits down next to Amora, What are you having woman, Amora looks at him out of the corner of her eye. He does get her to start talking but they are quickly interrupted by the arrival of Baron Zemo, Baron Mordo & one of the villains from Spider-Man lets say Kraven to recruit them.
I would have Zemo show up in the credits for every movie with Avengers members in them since Phase 4 will be the Masters of Evil vs. Avengers in my mind. Zemo, Mordo, Kraven, Enchantress, Executioner, Klaw, Moonstone, Leader & Justin Hammer (they are broken out, no clue what Hammer would do but I want Sam Rockwell back).