by marshmallow (?) » Sat Feb 18, 2017 5:53 pm
Hold my beer, I'm gonna try to predict stuff (and probably fall on my face).
The Storm King has a trident, which is associated with the sea. He stole it from the seaponies, shades of Ursula from The Little Mermaid. The seaponies use the trident to control the seas, similar to how the land ponies control the weather. When the Mane 6 find the seaponies their underwater kingdom will be in chaos. They'll go there because Celestia will recognize the trident from a long time ago and tell them the location of the sea kingdom. The King will first attack the Crystal Empire in the North, sweep down to Canterlot, and then finish off Twilight's castle. As for the King's motivation, he looks like a yeti. Perhaps Equestria's proclivity for weather control pushed his race to poorer arctic lands and he wants to turn Equestria into a stormy, icy place where his kind can live. And general revenge stuff.
Supposedly, the Storm King will be stealing magic. His minion Tempest Shadow has a broken horn. Those two facts will be connected somehow. Maybe she goes along with the King hoping to get her magic back. If she was bad in the past, maybe her horn was broken as punishment by Celestia or the seapony queen. She will be a key character and turn good again to help defeat the King. The King will stay in Equestria and Tempest and the evil mole character will be tasked with chasing down the Mane 6, who will leave Equestria in the hot air balloon, which will end up crashing after they're out of Equestria.
There will be a silly shanty song involving the pirates. Capper won't be a bad guy, but he'll sell the Mane 6 out for money and then feel bad about it later and do something to make up for it. He'll be a Han Solo, jerk with a heart of gold sort of character. There will be a gag where Rarity is enamored with his suave demeanor and the others tell her to focus.
In the last act, the Mane 6 + allies return to Equestria to confront the King. I'm going to say it'll be in Ponyville, since it's next to several large bodies of water and maybe the seaponies could help from there (SHOO BE DOO). The tone of the movie will start happy go lucky and silly, then like a natural disaster movie when the King attacks, the middle adventure part will be a quippy, Marvel-esque fare, and then the last act they'll return to a ruined Equestria, which will be played straight with maybe some gallows humor at most. The characters will see the suffering ponies which will steel their resolve, papering over any arguments they've had up to that point.
I can't find it now, but aren't there three artifacts they have to collect based on earth, air, water? Or was that the first version of the movie with Cosmos? If it's this one, the bird pirate leader will take air, sea pony queen water, and Tempest will be earth. They may split up the Mane6 when collecting them, to put more focus on certain characters.
If my guess about the yeti people is correct, maybe Equestria will carve out a section of the North for them, or even invite them to live in or near the Crystal Empire. This will engender controversy and people will say the movie's moral is that terrorism works.
Derpy will do something silly.
I think I just described a 2.5 hour movie instead of the more likely 90 minutes.
Last edited by marshmallow on Sat Feb 18, 2017 6:38 pm, edited 5 times in total.