ACT 3
Meanwhile, Love – now on her own in the oasis while Gorr is gone – happens to wander beyond the edge of the jungle into the Shadow World and sees the enslaved children and her father’s army of demons. Horrified, she runs back into the jungle. Not a moment laster, Gorr returns and we see him adding the sample of Olympian DNA to the Godbomb – it won’t be long now before its ready.
In New Asgard, Jane is rushed to hospital, and Thor tries to tell her not to pick up Mjolnir again as it will kill her – the scene from the movie is perfect and can remain unchanged. After this, Thor is suddenly contacted by Axl, who has managed to master his father’s abilities (no floating head though). Axl shows Thor where he and the other children are, and Thor recognises the galaxy, telling him that he’s on his way. Axl explains that Gorr has built a device capable of killing all gods across the galaxy: the Godbomb. Thor, Val, Sif, and the new Valkyrie Corps prepare to face the final battle, when suddenly Zeus arrives. He tells them that he’s had a change of heart – he now recognises the threat Gorr poses and witnessing Jane, a mortal, being prepared to give her life to save himself and other gods has made him feel ashamed of himself and other Olympians’ apathy and selfishness. Although he is too wounded to join in the fight, he gives Val his Thunderbolt to help them. Thor then transports them to Gorr’s planet.
A huge battle breaks out on Gorr’s planet. Thor and Gorr have a massive beat down, while Val and Sif command the Valkyrie Corps in fighting Gorr’s shadow monsters. In the chaos, Love sneaks off and frees the Asgardian children, who now join in the fight. The fight between Thor and Gorr goes much the same way as in the movie, with Gorr gaining the upper hand. At this moment, Stormbreaker communicates to Jane via Mjolnir that Thor, nay, the universe, needs her! Jane makes the fateful decision to pick up Mjolnir one last time and Stormbreaker transports her to Gorr’s planet using the Bifrost. Working together, Jane and Thor defeat Gorr (we still have “EAT MY HAMMER!!”), and using the same method as in the movie, manage to smash the Necrosword.
However, it is too late, as the Godbomb detonates, emitting a wave of pure black energy. With no time to lose, Jane summons Stormbreaker (Thor is preoccupied holding Gorr down) and throws herself in front of the explosion, absorbing it with both hammers. Every god across the universe, including Thor, Val and Sif and Zeus, is consumed in agony as the Godbomb threatens to end all of their lives. However, at the same time they see Dr. Jane Foster, the Mighty Thor, a mortal taking the full brunt of the explosion for them. A mortal, giving her life to save theirs. After enduring unimaginable pain, Jane absorbs the explosive energy, covering her body in a dark aura. Gorr is stunned by this, and seeing Jane’s courage, realises that in spite of their similarities (both powerless mortals cruelly condmened to die painful deaths), she never allowed her suffering to destroy her humanity, her kindness and her compassion. By contrast, Gorr knows now that he became the very thing he swore to destroy: a cruel, vengeful and despotic god. He knows that he must die for what he has done but asks that Thor look after his daughter when he is gone. After this, Jane releases the pent up energy into Gorr, destroying him. This final act exhausts Jane, causing her to drop both hammers and collapse. She then dies in Thor’s arms and once again the scene from the movie can be unchanged.
Epilogue
In the epilogue, we see Jane Foster’s funeral (attended by Thor, Darcy, Selvig and other science-y MCU characters like Bruce Banner, Shuri and Doctor Strange). We see Val and Sif marry and the latter become the Queen of New Asgard, as well as that witnessing Jane’s sacrifice really has changed the gods of the universe (including Zeus) by making them less selfish and more willing to help. We see Zeus ending droughts by making it rain, and Poseidon stopping tsunamis and so on. It is made clear that because of the sacrifice of Dr. Jane Foster, the Mighty Thor, the gods learned to be gods again, and because of that there will never be another Gorr. And the film still ends with Thor and Love.
Obviously, the first post-credit needs to be different, so you can throw in Kang or whatever.
Second post-credit stays the same.
Fin.