The rest of it

This was too much to write out, so here are the plotbeats draft:

• Mark: The plan is to go into the office and refine data. But this time, he selects only the numbers which make him feel nothing, to ruin Cold Harbor. Harmony explains that Milchick will be happy to have him work after hours.

• He calls Milchick, who is indeed very happy, albeit conflicted. He is eating a salad, with croutons, and decides to take it slow to the office. (Fitting with his character arc.) Milchick calls the front-desk security to ask them to let Mark in.

• Mark gets to the office, is carded in.

• Gemma is told "that is enough juicing; it is time for your rooms. You're doing all of them today."

• Then Joe Biden breaks in to the Christmas Room, says "Christmas is Fascist", and shoots the Dr. in the head and breaks Gemma out through the broken severed door.

• Biden's brain is so old and calcified that it breaks any severance door he goes through.

• Gemma and Joe Biden are are confronted by James and Helena, who explains the master plan: Relaunch the Juicero by manipulating world events (see: Lexington Letter) to make it so that every person in the world is in dire need of a cold glass of freshly squeezed juice at the moment of launch. The flavor Cold Harbor is flavored like the release of death, with none of the dying, to really seal the deal.
• Joe Biden begins a confrontation like "Listen up Jack, no malarky-" but then bumps his head and dies instantly.
• Gemma, recognizing Helena, informs her about the conditions she's being held under, slowly realizing that Helena was already aware. Helena explains it's for the greatest good, and that the launch has already started, before walking away with James. As Helena walks away, Gemma says Helena is pathetic and has nobody in her life who loves her, and Helena walks back, and whispers in Gemma's ear, "I fucked Mark and I'm havi-."
• Before Helena can finish her sentence, Gemma bites Helena's eyeball out.

• Milchick is still eating his salad when he gets a PRIORITY ALERT on the status of Helena's gouged eye. He says, "God dammit," grabs his bag of croutons to snack on, and motorcycles to the office.

• Dylan and Gretchen see a commercial for "Juice, 2!"
• Natalie and Ricken are presenting it. It's literally just the Juicero again. But... It's so very compelling.
• Dylan and Gretchen breathe a sigh of relief. Things might be okay after all.
• Just then: Beehive mode activates, turning all the severed people into a brand new thing: A personality solely dedicated to protecting Helena Eagan.
• Dylan stands up with a newfound and unshakable purpose in life, and he makes a beeline to Lumon. He's not alone, and a montage starts. Every single severed individual is trying to get to Lumon. Even Irving is included in the montage. Even the Severed people in other continents are trying their best to get to Lumon. Also, all the goats are going crazy.

• Cut to Milchick, in the repurposed security room, having had activated the beehive protocol.
• One of the monitors is dedicated to the security profiles while the remaining monitors still have a one-image slideshow of Dylan and Gretchen.
• But Harmony calls and explains "don't activate it, by the way, it will be in reverso mode soon because of MDR shenanigans." But it is too late to unactivate it! Oh no! It's not like the OTC; once it's turned on, only Helena can deactivate it.

• Gemma, severed, is kneeling before smirking Helena. Mark quickly makes it down the elevator, also in deference to the queen.
• Helena, who has been ignoring calls from Harmony, receives a call from Milchick, explaining the situation she is in. She books it to the security room. She tells Gemma and Mark to stay behind, but they follow her closely, like dedicated security dogs.

• Joe Biden, who survived his bump, seeks nutrients in the nearby Cold Harbor room, recognizing it from the Juice packet. The inside is a black abyss. As he crawls in, we see only a constellation of mysterious lights in his eyes. Then, something like recognition appears on his face as he screams into the howling void. The screen goes black.

• The loyalty and deference in Mark and Gemma's eyes slowly turn. Helena and James are surrounded. James unbuttons his shirt, revealing a form of stacked rippling muscles. He explains that a diet of freshly squeezed raw juice has left him in perfect fighting condition.
• Helena and James are ready to fight, just as Mark and Gemma are overtaken by the insatiable bloodlust of the inverted Beehive Protocol.
• Just then, the elevator dings, and a hoard of Severed employees pour out, clown-car style.
• James stays behind to fight as Helena runs through the hallway to the Security room. They sure do love their Hallway runs on Severance.

• The next scene is a long, uncharacteristic, and single-shot action sequence with fantastic fight choerography. Very much "River Tam beats up Everybody", but it's "James Eagan takes on every Severed person we've seen in the series." He has a visible "NO FUN ALLOWED" tattoo.

• Helena gets to the security room, but all the buttons are destroyed.
• She looks at the security cameras. The perpetuity wing is safe. She takes a secret exit.

• Meanwhile, throughout Kier, people are clamoring to buy the latest in Juice-squeezing innovations. They can't get enough. They need it. The need Juice, 2! They will kill for Juice, 2!
• There aren't enough Juicero Juice, 2! to go around. It's the fucking apocalypse. Oh my God. People are killing for the Juice, 2!, and killing themselves if they can't get one.

• Helena approaches the deepest basement in the perpetuity wing.

• James puts up a good, long, juice-powered fight, but is eventually destroyed.
• As the crowd leaves James to pursue Helena, Harmony appears, drill in hand. She removes the Severance chips from each characters head, including the blue one inside James'.

• Helena unseals the hushed casket of Kier Eagan. His eyes open. The severance theme plays.

The credits roll, and then, a post-credits scene:

• It ends with Irving showing up late to the bloodbath in the hallways of the Severed floor, like Horatio at the end of Hamlet. He says, "Alright kids, I guess this is what's for dinner." He takes his blue Irving funeral mug, scoops up some of the blood from his ankles, and takes a sip, looking directly at the camera.

A line swoops in, but this time it doesn't adorn the words "Severance". It adorns the words "Juicero 2", with a new subtitle, "Announcement coming", and a subsubtitle, "WWDC 2025".