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    Pre-Release 
Previous animated incarnations of the franchise will appear as cameos.
The most likey candidate is Sonic Boom due to it being an All-CGI Cartoons and having already explored the idea of Alternate Universes, however WildBrain does own the rights to the DiC Entertainment cartoons.
  • Jossed for SatAM, but unconfirmed for everything else.

Other Sonic characters that could potentially appear
  • Silver the Hedgehog
  • Blaze the Cat
  • Team Chaotix
  • E-123 Omega
  • Cream the Rabbit
  • Metal Sonic
  • Tikal the Echidna
  • Chaos
  • Fang the Sniper/Nack the Weasel
  • Bark the Polar Bear
  • Bean the Dynamite
  • Scratch and Grounder
  • Snively Robotnik
  • Sleet and Dingo
  • Infinite
  • Grimer
  • Mecha Sonic
  • Commander Brutus
  • Iblis, Mephiles and Solaris
  • Hard Boiled Heavies
  • Dr. Zachary or an expy of him
  • EggRobo
  • Tangle the Lemur or an expy of her
    • "Metal Sonic" is confirmed to appear in Season 2.

There will be an evil alternate version of Sonic

Robotnik will borrow a catchphrase from another version of him.
He will use Aosth catchphrase, "I hate that hedgehog."

Rouge has her own agenda.
  • Although the trailer shows Rouge fighting alongside Sonic and his friends, she’s just doing it because she wants the Paradox Prism for herself. She might even team up with Eggman and/or Shadow if it’s convenient for her.
    • Somewhat confirmed. Rouge shows up and explains to Sonic that she actually has been hunting down the Paradox Prism for Years cause it fits her jewel hunting nature, but she’s also clearly just as eager to stop Eggman from using it for evil purposes as the others.

The pink Flicky shown in the trailers is the same Flicky that was in Gamma.
  • Sonic Adventure was one of only the times the series has had a pink Flicky, the other being 3D Blast, whose pink Flicky has a much different design than what we see in the trailer; the main universe version of this Flicky is seen with Amy, Tails, Knuckles, and Big, who were also protagonists of Adventure alongside Gamma; and in an alternate universe, an alternate version of the Flicky is a mount for Amy Rose, who befriended Gamma and inspired him to revolt against Eggman.

    Post-release, Season 1 
Shadow will be helping Sonic throughout Season 2
Given that he is one of the only two (if not count Sonic) that has been shown alive in the shatterverse, it is highly likely that once Sonic tries to reason with him, the latter will help him in Season 2 while going throughout the Shatterverse.

Other possible Shatterspaces, Alternate Sonic’s friends names, gloves and boots powers
  • A Western themed Shatterspace where Sonic’s gloves let him throw out a rope and lasso.
    • Friends are named Desert/Cactus Rose, Moulin/Ruby Rouge, Catterwaul Big, Dusty Tails, and Buck/Blackeye Knuckles.
  • A medieval themed Shatterspace where Sonic's gloves turn into his gauntlet from Sonic and the Black Knight that he can use to summon a sword.
    • Friends are named Blacksmith Tails, Sir Knuckles, Queen Amy, Lady Rouge, and Sir Big.
    • Tails will be called Sir Miles Prower, it will be referencing the medieval style world called Nameless Zone he is from in Sonic the Comic.
  • An Arabian Nights themed Shatterspace where Sonic's shoes can create a magic carpet he can ride like a skateboard. Or an Extreme Gear.
  • A frigid icy Shatterspace where Sonic’s shoes become ice skates.
    • Friends would have ice-themed naming like Polar, Blizzard or Frosty.
  • A gleaming city inspired by the Superhero genre where Sonic's gloves gain a Grappling-Hook Pistol function to let him swing across skyscrapers.
  • A black-and-white film noir-themed Shatterspace where Sonic's gloves act as a sort of clue-finder, temporarily giving important things color.
  • A Nottingham inspired Shatterspace where Sonic’s gloves can act as a crossbow that shoots out arrows.
    • Rouge is a Robin Hood expy named Robin Rouge, and Knuckles takes on the role of a male version of Maid Marian.
    • Amy Rose will take the Robin Hood role as a reference to two different comics, the Archie comics where her cousin is a version of Robin Hood and Sonic the comic Amy who uses both a crossbow and a bow, Sonic the Comic Amy is the first version of Amy to use a weapon.
  • A Monster Mash world set in the equivalent of Victorian England, with Tails as a werewolf, Amy as a witch, Big as a zombie, and Rouge as a vampire. Knuckles will be a Hunter of Monsters who struggles between his responsibilities and not wanting to commit Van Helsing Hate Crimes. Sonic’s gloves will turn into mummy bandages, allowing him to tie things up and use the bandages like a rope.
  • A Mirror Universe where Sonic's friends are all different flavors of villainy and "Goodniks" like Orbot and Cubot are desperately trying to protect the world, to Sonic's eternal confusion and discomfort. Sonic's gear will give him Intangibility to represent his desire to stay out of this particular conflict and not have to fight the parodies of his friends.
    • The Tails counterpart could be the Mad Scientist "Dr. Prower", looking to use the Goodniks as slave labor or spare parts for his own inventions.
    • Knuckles or Amy could be Dr. Prower's muscle in attacking the Goodniks. Dr. Prower would chastise them for getting too destructive and risk ruining the parts he wants.
    • Rusty Rose could briefly form an Enemy Mine partnership with Sonic as she sees the villains of this Shatterspace as a threat to the Chaos Council's rule.
  • A Gender-Bent Alternate Universe where Sonic becomes a female version of himself with relatively the same abilities.
    • Friends include Miley "Tails" Prower, Andy Rose, Knuckla the Echidna, Rogue the Bat, and Huge the Kitty.
  • All Jossed: There are only five Shatterspaces, and only three of them are inhabited; New Yoke City, Boscage Maze, No Place, the Grim, and Ghost Hill.

The original world isn’t destroyed, but just split into pieces.
  • Sonic and Shadow don’t seem to be in any parts we’ve seen of the Shatterverse. It’s possible that the world "not existing" is that the Shatterverse is actually just parts of the world split into different dimensional planes. Since Sonic and Shadow had transported themselves into the Shatterverse before the chaos happened, and have only caught a glimpse of what is there, it’s not entirely impossible.

There are seven Paradox Prism shards Sonic must find in order to solve the crisis.
  • Because whenever Sonic collects something it’s in sevens. Each Prism shard is in a different world and represented by a different color, either the rainbow or Chaos Emerald colors.
    • Red: New Yoke City
    • Orange/White:???
    • Yellow:???
    • Green: Boscage Maze
    • Blue: No Place
    • Indigo/Cyan:???
    • Violet/Purple: The Grim
  • Jossed: There are five Shards;
    • Red: New Yoke City
    • Green: Boscage Maze
    • Blue: No Place
    • Violet: The Grim
    • Yellow: Ghost Hill

The source of Shadow's edginess.
  • His standard backstory, with Maria Robotnik and the space colony, would clash too much with this universe. Instead, Shadow is simply an old genetics experiment of Eggman's grandfather's. Shadow seeks power because he is plagued by self-doubt from his "artificial" nature. You could say he doesn't want to be a mere shadow of a hedgehog.
  • Jossed, Prime takes place in the same universe as the video games according to Word of God.

There are six total alternate universes that each have a Chaos Emerald hidden within
  • They would be used in the inevitable final battle against Eggman, in whatever form he may take at that point, with Sonic and possibly Shadow going Super and then Chaos Controlling the universe back together.
    • Finding the seventh one will be irrelevant due to Shadow currently possessing the green Emerald.
  • Jossed: There are five Shatterspaces.

Rusty Rose was turned into a cyborg against her will by the Chaos Council, and will turn against them by the end of the show.
  • In the first episode, Rusty states how fighting the Council will only end badly for Nine. The third reveals she's directly controlled by the Chaos Council after Nine manages to hack into her systems and turns her against them, with her mechanical eye even changing color from red to yellow once he takes over. And then the eighth shows Rusty glitching up upon seeing Black Rose before calling off the attack, when she was clearly winning and had no reason to leave until the ship had completely sunk. These all seem to indicate that the Rusty Rose we've seen so far is nothing more than a programmed personality created by the Council. Perhaps she was originally a rebel like Knucks and Rouge, but was captured by the Council at some point (perhaps to let others get away from the Council) and forcibly turned into a subservient cyborg as a warning to other rebels. After seeing another version of herself, her dormant personality resurfaces and begins to fight with the program for control, explaining why she suddenly decided to take mercy when she had shown no such thing before; and eventually, she will fully overpower the program and become an ally to Sonic and company against the Council, signified by her mechanical eye turning from red to green.

One of the Shatterspaces has a heroic Eggman.
  • So far, the only counterparts for Eggman have been the Chaos Council, but he was caught up in the blast just like Sonic's friends. In at least one of the Shatterspaces will have an Eggman who is a Science Hero, perhaps with Sonic's friends as the villains. Naturally Sonic's biggest issue is going to be learning how to actually fight those he sees as friends and ally with someone he sees as an enemy.
  • Jossed: In all of the Shatterspaces, there is only the Chaos Council.

Shadow will be confronted with his own flaws just as Sonic was.
  • From what we've seen already rather than peacefully converse about the problem Sonic would eventually cause out of recklessness, Shadow prefers to let his fists do the talking because fighting is all he knows how to do. As such this will eventually cause more problems for himself and Sonic than it solves and if he doesn't realize this sooner, he's going to learn it the hard way either by being defeated and restrained by Sonic, encountering someone in the Shatterverse who is just like him, or something else entirely.

The Chaos Council are all Eggman, but split up into five basic aspects of his personality.
  • When Sonic shattered the Paradox Prism, Eggman was the closest one to him and practically holding on to the dang thing. As a result of this, he took on much more of the blast than the rest of the world, and rather than creating alternate universe versions of him like it did with everyone else, it turned him into a divided up group of five Eggman’s, each representing a dominant trait of his villainous personality.
    • Dr. Babble: Immaturity
    • Dr. Don’t: Lack of Empathy
    • Mr. Dr. Eggman: Bossiness
    • Dr. Deep: Arrogance
    • Dr. Done-It: Irritability

At the end of season one, Mr. Dr. Eggman will be the only remaining member of the Chaos Council.
  • Whether through the others ditching him, him ditching them, them being captured by the rebels, or whatever, he'll be the only one left, until the main Eggman approaches him with the idea of forming a Council of Eggmen to get revenge on Sonic and friends.
  • Jossed. Episode eight is the end of season one, and all five members are still present.

The iterations of Sonic's friends are likewise parts of their personalities.
  • As with Eggman in an above WMG, Tails, Rouge, Knuckles, and Amy Rose were shattered. Some of the aspects are ones Sonic never realized, such as Forest!Tails not knowing everything, even being afraid to ask.
  • This goes extra for Amy Rose. We will see one cheerful Amy - Black Rose, the pirate - while the rest are threats or problems that Sonic must deal with. Once he gets the Paradox Prism reassembled - and with it, Green Zone, his friends, and Eggman - he gains a new appreciation for Amy Rose and inquires if she wants to talk about her feelings, asking her about the parts of her that she's been repressing.

The Grim is not unpopulated.
  • Rather, almost everyone has either been sent to another Shatterspace or is trapped. Sonic will find the entity responsible, perhaps The Grim's version of Amy Rose, who is able to somewhat see the future and/or has extremely perceptive intuition, and has tarot motifs or uses tarot for her predictions.

The Chaos Council members are all from the same shatter verse.
  • The show confirms that the Council had the red shard for years but never knew about the rest of the shatter verse until Sonic came along. It’s possible Mr. Dr. Eggman used the shard’s powers to make clones of himself, but they were imperfect and aged at different rates.

In the finale, Sonic will get a Super Mode from the Paradox Prism to repair the Shatterverse.
  • After obtaining all of the shards, Sonic will have a mode called Prime Sonic. Since the Paradox Prism has the power to create possibilities by creating new universes and powers, Prime Sonic will have the power to negate possibilities by removing the effects of causes like Gold Experience Requiem. Using this ability, Sonic will negate the derivative realities of the original universe, merging the timelines into the original universe.

New Yoke city is the original Sonic universe

  • It's the only universe that has any Eggmen, and it's basically what the original universe would look like had Sonic not been there to stop Eggman while the other universes seem to be different from the universe just because they're alternate universes. Events also played out similarly like Tails being bullied but gave different results. Sails and Mangey don't seem to have been bullied or affected by the lack of Sonic. It's also the universe that's getting the most focus.
    • Jossed: "Ghost Hill" is the closest to the original universe, caught in a state of pre-development.

The Grim is the original Sonic universe
  • As an alternate take to the above theory, the Grim is the original universe, rendered a lifeless husk after the Paradox Prism shattered and took all aspects of the original to create the Shatterspaces. Bringing the Paradox Prism's shards to the Grim will restore it to life and recreate Sonic's home.
    • Jossed: Ghost Hill fills this role rather than the Grim due to its incomplete nature.

Shadow will not be able to leave the void
  • To clarify, he probably will escape, but not for a long time. The writers have mentioned Shadow is incredibly hard to write for and that is why he hasn’t been included in the plot as much as the other characters. It's therefore possible Shadow simply can't enter Shatterspaces no matter what to justify keeping his role minimized. However, with Sonic unlikely to remain in the void but aware of Shadow's survival, he may try contacting his rival more frequently until he is able to escape.
    • Seemingly jossed due to a promotional image for the second season showing Shadow underwater somewhere that appears to be No Place, or at least very unlikely to be part of the void.
    • Confirmed: Even after stealing Nine's tech, Shadow cannot pass through the gates into the Shatterspaces. The only exception is Ghost Hill due to its incomplete nature.

Nine will serve as the final antagonist of the series.

  • Once the Paradox Prism is reassembled, Nine will attempt to seize it just as he did the red shard so he can use it to create a world to his liking. While Sonic will try to get him to let them use the prism to restore the Prime universe, nothing about Nine indicates he'd wish to either fade from existence or merge with the other Tails variants for his Prime Counterpart's sake. It's entirely possible he'll even resent Tails Prime for having the better life and resolve to keep the universes shattered in order to keep Sonic for himself.
    • Alternatively he'll assist Sonic in trying to restore the Prime universe, which is much more idyllic than his. Secretly though he will be attempting to imprison and exile his own counterparts, keeping them from merging with him to form Tails Prime. Sonic's refusal to sacrifice the other Tailses will cause Nine to throw a cosmic temper tantrum, setting up the final conflict.
  • Semi Confirmed: Nine does want the Prism to make his perfect World in The Grim. It’s only implied that he suspects that he will cease to exist if Green Hill is restored. Though it’s unclear if he’ll be the final antagonist or not. Nine so far, only seems to really dislike Tails.
The show is a Stealth Sequel to Sonic Frontiers.
  • It’s been confirmed in interviews that Sonic Prime is canon to the games and takes place some time after Sonic Frontiers. On top of that there are statues resembling the ones from the game surrounding the blue shard in No Place. Maybe the Paradox Prism has a connection to the Ancients, who came from another planet that might have been in another universe.
    • On top of all of that, there's a dimension in the show called "The Grim", which is accessed through a purple portal, and is a deserted wasteland, as if a void had consumed it. Does this remind you of anything?
    • Jossed. Ian Flynn states Sonic Prime takes place after Sonic Advance 3.

Sonic will help Shadow out of the void where he'll help fight in New Yolk City.
The cliffhanger episode 8 left on will be resolved and the two will come to an agreement about how to fix the problem. Sonic will continue travelling the shatterverse and looking for a way to bring things back to normal, maybe rescuing Nine is a part of this, and curtailing the Chaos Council's multiversal plans. Meanwhile Shadow will travel to New Yolk City and remain there helping the Rebels against the council on their home turf.

This could solve the Shadow is difficult to write problem as having him beating up tons of robots to protect people is perfectly in character and grounding him in New Yolk City keeps him away from the active plot until they need him. It would also make sense story wise as Shadow's power aiding the Rebels, combined with Rusty Rose's capture, would force the Chaos Council to divide their forces. At least one of their number would need to remain behind in New Yolk City to keep it under control, making Sonic's job easier. This troper sees Babble and Deep staying in New Yolk, that way the other Eggmen, who have yet to fight Sonic, will get the spotlight in the main plot.

  • Jossed: Shadow never enters another Shatterspace other than Ghost Hill. However, the Chaos Council follows them into Ghost Hill, letting him fight alongside Sonic against them.

Each populated Shard is defined by one of Sonic's friends at their worst.

Each world isn't just different sides of the characters, but each one will have one of the friends as the BBEG of that shard at some point.

Note the worlds we've seen so far:

  • Jungle: Amy has become a monster.
  • Pirates: Knux seemed to be going full Gollum as Sonic vanished.
  • New Yoke City: Season 1 ended with Nines technically the prisoner of the Chaos Council, but the Council is basically asking Nines on how to do what they want to do. It's only a step or two from Nines taking control of the Council and/or city.

Worlds that likely exist, but not yet seen:

  • Rouge
  • Big

Worlds that may not exist:

  • Sonic: May or may not have one due to being at the the shattering
  • Eggman: May or may not have one due to being at the the shattering
  • Shadow: If the worlds are imprinted on people in the vicinity, the empty world Nines likes may have been Shadows world if he hadn't chaos controlled past the imprinting process.

Why Dr. Eggman has five counterparts in New Yoke City and none in other Shatterspaces
The Paradox Prism might be sentient to some degree, and it sensed the prime Eggman's malevolence and the threat he posed when it shattered: although it still splintered Eggman into multiple alternates like it did with Sonic's friends, the Prism concentrated most of Eggman's newly-divided aspects into the same Shatterspace, trying to contain them and limit the damage they could wreak on the Shatterverse at large. This explains why Eggman has five aspects in the New Yolk City Shatterspace whilst the other Shatterspaces we've seen as of Season 1 don't seem to have any Eggman variants of their own.

At the end of the series, Sonic will save every world.
Specifically, after restoring the Paradox Prism, he will not only restore Green Hill as it was before the shattering, but (in defiance of the Expendable Alternate Universe trope) preserve the Shatterspaces as they are, creating alternate versions of himself to protect them from evil threats.

Sonic will have a crisis on trying to restore his own dimension, at the expense of the others.
In a similar manner to Peter Parker in Spider-Man: No Way Home, when seeing the other worlds as there own individuals, earning the right to exist as their own, Sonic will be hesitant to restore his world if it means erasing all their's.

There will be a tie-in game based on Prime at some point.
Because the idea of having Sonic travelling to new dimensions and gaining new abilities depending on his location is rife for potential for a game.

    Pre-Season 2 
Nine was the one who built Metal Sonic, not the Chaos Council.
The Council forced Nine to construct a "Sonic" that was loyal to them out of sadism as much as for Lensman Arms Race purposes.
  • Jossed: Mr. Dr. Eggman creates Chaos Sonic, though he does get the inspiration for the idea from Nine.

Sonic goes through a Heroic Bsod.
Realizing that he is responsible for the fact that his world no longer exists, and neither do his friends, he begins to feel terribly bad to the point of breaking down in tears, something we have never seen in that iconic character.
  • Semi-Jossed, Sonic does feel terrible, but he doesn't cry, and he quickly asks Shadow how to fix the problem.

Variants of Sonic’s friends will team up together
Because of how each of them are in each universe of The Shatterverse have at least helped Sonic including thanking him for having him make amends with Thorn Rose on The Scavengers, helping The Soldiers on taking down The Eggman Council, and helping the pirates stand up for themselves.

So it could be likely that each of them could team up together with one another including Sonic and Shadow on stopping The Eggman Council from taking over the Shatterverse.

  • Confirmed: Rusty Rose is abandoned by the Chaos Council and so becomes a member of Dread's Crew to take revenge. Dread ends up in New Yoke City chasing after "his beauty" and helps fight Chaos Sonic.

Sonic’s friends are still alive
Despite them having not been shown or confirmed to have survive after the crystals shattered, Sonic and Shadow were able to survive the destruction of the crystals.
  • Confirmed! Sort of. They're alive, but they've been reduced to phantoms spouting the same line over and over again.

It will be revealed that Prime takes place before Forces and Frontiers, but after Lost World. Ending with Eggman finding the Phantom Ruby.
Pretty self-explanatory, and it's the only placement that would make any sense at all given how different Sonic is between Lost World and Forces, let alone Frontiers. Plus, in the now canon IDW comics, Eggman said he's had his fill of "new magical gemstones." Gemstones as in plural, and the only one besides the Paradox Prism he's had experience with is, what else, the Phantom Ruby.
  • Sort of. According to Ian Flynn, the show takes place after Sonic Advance 3.

There's a fifth Prism Shard, a purple one and it's in The Grim.
Also pretty self-explanatory. The Grim is the only Shatterspace that's yet to have a shown shard, and Sonic Dash had a purple shard as a collectible instead of a yellow one.
  • Confirmed!

Bottomless Void could be a portal
There is a dark void deep within the Shatterverse, and according to Shadow, anything that falls into it is lost forever. There is no way the Chaos Emerald could have been lost forever. It has to lead somewhere, perhaps to a hidden dimension, where Sonic's original friends might be.

    Post-Season 2 
The hole at the bottom of the Void is an expression of THE END sans consciousness.
If the series does take place before Forces and Frontiers, then THE END and its incarnation are still trapped in Cyber Space. Leaving the rest of its being without a consciousness and ability to act on the, frankly, and no pun intended, PRIME opportunity to destroy the universe.
  • Furthermore, I think it’s quite likely that the Paradox Prism might have been a creation of the Ancients. The way Sonic’s friends are in Ghost Hill is reminiscent of the cages from Frontiers, and the name Chaos Council seems to imply that the prism uses a form of chaos energy. Perhaps the Prism was created as an experiment to combine chaos and order, with them using it as a blueprint to eventually invent Cyberspace.

Nine will be a villain
Due to Nine's betrayal, he will officially become an enemy to Sonic, Shadow, and other versions of Sonic's friends. Apart from the Chaos Council, Sonic must first face Nine to recover the fragments.
  • Semi-confirmed, since Nine's villainous arc didn't last long.

Nine will pull a Heel–Face Turn
In the climax, Sonic will successfully get through to Nine by reminding him of their friendship and seeing him as his own person.

Sonic and Shadow will not team up.
With how angry he is at the end of the season, it's very likely Shadow will fight Sonic for trusting Nine and will fight Nine to get the Prism Shards back and restore the world on his own. As for Sonic, he'll oppose Shadow for trying to attack Nine, as he feels he can redeem him in some way.
  • Although pissed off, I don’t think Shadow will do that since it’s not really POSSIBLE. Remember the whole reason that he’s working with Sonic in the first place is because he’s physically incapable of entering the Shatterspaces himself so there’s no way he could follow Nine into one.
  • Jossed. Promos show Sonic and him in the Grim fighting against Nine’s robot army.

Sonic's original friends return to normal
Either by a stroke of luck, or by Nine turning them back to normal of his own free will, Sonic's friends are turned back, learning what's been going on since the Paradox Prism was destroyed, and decide to help out in the final battle against the Chaos Council.
  • Kinda confirmed, since when Sonic (in a weakened state) returned to his original dimension, everything came full circle at the moment Eggman got a hold of the Paradox Prism, but without the Prism itself getting destroyed.

Mangey will learn how to talk and build
After Mangey meets his counterparts following his being transported to one of the other shatterspaces, either Sails or Nine will teach him how to talk and invent things. Unlike the others, however, Mangey will talk like a caveman, and his inventions will be much more primitive than the ones made by Nine and Sails.
  • Mangey was shown to be able to somewhat say the word “Feelings”, so it’s possible that He might eventually be able to say other words.
  • Confirmed, though without the speech.

Sonic will use the Prism shards to not only restore the original universe while also keeping each shatterspace intact.
After going through more Character Development and recognizing each of his friends’ counterparts as people in their own right, Sonic will decide to Take a Third Option so that all of them and their respective realities will exist alongside the main universe.
  • The shatterspaces will be fused together by the power of the Paradox Prism being unleashed. Leading to the mother of all paradoxes.

Nine will create his own Sonic.
Nine has cut Sonic out of his life and has doubled down on his belief that he can only trust himself, but having a taste of true friendship means he still craves it. Nine will use the Reality Warper powers of the Paradox Prism to create a copy of Sonic, one to better fit the ideal friendship role Nine wants.

The original Sonic will be disturbed by this doppelganger and how Nine treats it as if it were the real Sonic, but Nine will throw his revulsion back in his face; this is exactly how Sonic treated Nine regarding Tails. This will reinforce Sonic's Heel Realization and motivate him further to Take a Third Option regarding the fate of the Shatterverse.

  • Confirmed: The Netflix Geekend Clip of season 3 shows Nine creating a copy of Chaos Sonic to fight Sonic and Shadow.

The final conflict will be a Mêlée à Trois between Shadow, Nine, and Sonic.
Shadow wants to restore the universe destroyed by the Paradox Prism. Nine wants to create his own ideal world. Sonic, seeing the value of those he's met in this adventure, wants to find a way to save what was lost and preserve what was created. Both Shadow and Nine see this wish as naive, and so a three-way tussle is going to break out with everyone fighting over the Paradox Prism to decide the future of existence.

The Chaos Emeralds will be used to defeat the Paradox Prism.
With Nine holding the power of the complete Paradox Prism, Sonic and Shadow can't get near him without him doing whatever he can imagine to them with his new Reality Warper powers. To combat this, they need the greatest power they've known for years; the Chaos Emeralds. With no other option, the two dive into the Bottomless Void to retrieve the green Chaos Emerald Shadow dropped.

Discovering a whole other world made of the scattered debris of the Shatterverse, Sonic and Shadow will explore this "underworld" to find the Chaos Emeralds and use their power to give them a fighting chance against Nine and the Paradox Prism.

Chaos Sonic will be rebuilt.
And he’ll be angrier than ever after getting scrapped the first time.

Sonic will have a complete transformation thanks to the Paradox Prism.
Sonic got a powerful transformation when there were only 4 shards of the Prism. Maybe when Nine is on his side again, he will use the 5 fragments for Sonic to deal the last blow with a complete transformation thanks to the powers of the magic stone.

Every version of Amy will team up in order to create the ultimate Alliance of Alternates
Rusty and Black did seem pretty impressed by Thorn Rose, and if the original Amy comes back, then all can join the fray.

Shadow will rethink his stance about the Shatter Space versions of their friends.
There are two big reasons that Shadow disregards the reality of the variants. 1) Shadow has not personally interacted with them due to being unable to visit the other Shatter Spaces, and 2) Shadow may be suspecting that the variants would disappear if they restore the prism, which means he has to choose between his own world or theirs. Eventually Shadow will be faced with these reasons and the conflict that comes with it.

The Blue, Yellow, and Red shards will be left to recreate Green Hill Zone and originals while keeping the other verses in place. The colors remind of Sonic Heroes.

It won't be an either or options. Both the original world and the other worlds will remain. The Blue, Yellow, and Red shards will be used to bring back Green Hill Zone. This is a nod to how Sonic Heroes the video game got the right combination of ingredients to make a Sonic story. The other worlds will stay in intact with the other shards.

There is no Ghost Eggman and the Ghosts in Ghost Hill aren’t actually Prime Amy, Prime Tails and so on.
We never saw a Ghost Eggman anywhere. When Sonic called out to the Ghosts after they became normal, They looked but they didn’t use his name. The Ghosts didn’t ask about Eggman’s whereabouts or question anything except the world healing wave. When the Prime Characters were split, Yellow (Ghost Hill’s shard) was one of the colors that they got split into.

Sonic will yell at Shadow at some point in Season Three and Shadow will be ashamed of himself
Through out the series Shadow has been yelling at Sonic, despite being partly to blame for what’s happening. So at some point Sonic just snaps and gives Shadow a scathing and harsh "The Reason You Suck" Speech to Shadow. Pointing out how he has been behaving. Calling out his aggressive attitude and his general distrust of others. As it continues Shadow then realizes that he could have done better and that he not only had a hand for the current situation, he also made things worse. This will leave shadow with a look of horror and shame, realizing that Sonic’s right.

The Grim isn’t finished yet and will eventually get its own variants of The Characters.
All of the other Shatterspaces have Variants. Amy, Tails, Knuckles and Rouge were shown glowing All of the shards colors when they got split and there are 5 shards. Which means that they should have 5 Variants.

As proven back In Situation: Grim, Time goes by differently in each Shatter Space. So why can’t The Grim still be in its early stages? Especially since The Grim doesn’t have a Version of Green Hill yet and Sonic’s gloves and shoes become prism blocks when he’s there.

Sonic will end up saving Ghost Hill, Not Green Hill.
Eventually someone, possibly Nine will make Sonic realize that saving Green Hill might kill the Shatterverse.

There’s a Shard that’s Dark Blue/Purplish inside of Sonic
In Shattered, Sonic exited what appears to be a Shatterspace filled with shards that are Dark Blue/Purplish. In the exact same episode, There’s a share with that color in the area where Nine placed the Blue Shard in Ghost of a Chance. In the intro, the words “Sonic” and “Prime” start glowing and then reveals shards that are dark blue/purplish.

Sonic will have a jerk realization and try apologizing to Nine.
As shown in the Netflix Geeked Clip as well as the Trailer and implied in his fight with Sonic, Nine now considers Sonic to be a Fake Friend.Sonic wants to become friends with Nine again but he doesn’t understand what he did that gave Nine that impression. So he will reflect on his behavior. Which is

1. He doesn’t keep his end of any deals unless he’s either A.) feeling guilty or B.) There’s something in it for him.

Sonic’s word to Nine didn’t qualify so he forgot about the part of their deal where he was supposed to go to The Grim and look at Nine’s surprise.

2. Nine made multiple sacrifices for Sonic and/or put Sonic first on multiple occasions but he never made any of his own sacrifices and/or put Nine first.

3. Furthermore There is indeed a high chance that Nine might not survive Prime Tails’s resurrection.

    Pre-Season 3 
Everyone turns against Sonic.
In a fit of rage, or perhaps just to annoy Sonic, Nine reveals to all versions of Sonic's friends from different worlds what Sonic's true goal is. Very angry, they will confront Sonic for wanting to disappear their homes and themselves from reality.
  • Semi-confirmed, as it was temporary.

Nine will use his device that can locate shards, to stalk Sonic.
Eventually Nine will decide to try to get the energy that’s inside of Sonic, to stabilize the prism. However He needs a device that might track Sonic.Sonic has shard energy so Nine’s locator device might be able to track him down.
  • Jossed. Doesn't happen in the season.

Sonic will willingly allow Nine to remove his shard energy.
If They do make up, Sonic will understand why Nine is doing what he’s doing. Then, while saddened and likely horrified, He will allow Nine to do his thing.

After all, the synopsis states that Sonic has to grapple with the ultimate sacrifice. It’s not a Sacrifice if Nine forcibly removes the energy from Sonic.

Nine makes the Green Portal that looks like Ghost Hills portal.
Nine’s the one who was the most interested in figuring out their powers and as implied by Sonic’s previous disappearing, Characters from the original world can’t touch the shards. Nine is also the only shattered who visited Ghost Hill.Why Nine do it? Maybe after talking things out with Sonic, he decides to change his mind and/or did it to try to keep Sonic from dying.

Sonic has a complete transformation.
Whether he reconciles with Nine or not, perhaps Sonic can get all the fragments of the Paradox Prism to give him the power to fix the universe or defeat the Chaos Council and Nine.
  • Jossed.

The Chaos Council will be the final villains.
If Nine manages to change his mind, with all the fragments in one place, that will be the perfect moment for the Chaos Council to take all the fragments and conquer the universe.
  • Jossed. While the Chaos Council do try to steal the Paradox Prism after Nine is talked down, it’s mostly Played for Laughs as they instantly turn on each other and each try to take the Prism for themself, with the heroes watching on in amusement, leading to them being quickly defeated as a result of their infighting and the heroes deciding to step in and gang up on Mr Dr Eggman once he’s the only member left standing. The actual final villain is Eggman Prime after Sonic returns to the newly restored Green Hill.

Nine doesn't know what could kill Sonic.
Nine needs the Paradox Prism's energy trapped inside Sonic to stabilize the magic stone. However, he thinks that just taking it away will only make Sonic lose his connection to the Prism, perhaps he doesn't think it will do him any greater harm. When he finds out, whether it's because he takes it away himself, or Sonic makes a sacrifice, or anything happens, it could be Nine's moment of redemption.

Nine is the key to saving Sonic.
If Sonic makes the ultimate sacrifice or because Nine takes away his energy without knowing the consequences, when he sees that he has done great damage to the only friend he has ever had, Nine will regret everything he has done and there will be a moment Tears of Remorse and it is The Power of Friendship or The Power of Love that brings Sonic back to life

The Chaos Emerald could be key to saving everything.
Due to its great power, and being an important element in Sonic's world, the emerald could be key to saving the Shatterverse.

Shadow has a transformation.
Whether he manages to harness the power of the Paradox Prism, Shadow could help save the day with that new power.
  • Jossed.

Shadow is going towards Ghost Hill.
After Sonic has sacrificed himself to save everything and everyone, with Green Hill returned to normal, perhaps the last hope to save Sonic's life is to go to the place where he started it all. So Shadow won't waste time and take Sonic home.

    Post-Season 3 

What was the new enemy that blasted Sonic and the others
It's unknown what it was as only it's shadow showed up and it must be gigantic.
  • Maybe it was The Chaos Council as they said that they will get revenge on Sonic.


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