One Piece Confirmed Two / WMG

This is an OPEN page for Wild Mass Guesses for the series One Piece which have been confirmed by the series or by Word of God. This page includes theories that were Confirmed during the Zou Arc and Onwards. If a WMG on one of the pages is confirmed, please move it here. If only part of a theory is Confirmed, please highlight the part of it that was correct in bold.

Please add new entries to the bottom of the page.

Sanji's been captured by someone

He's not dead, but being held captive somewhere.

Jossed. It's not known what's happened to him yet, but it is explicitly said by Luffy that he hasn't been captured.
- Or not! Now that we know what his note said, it's clear Luffy (who hadn't heard the whole story at that point) only thought he hadn't been captured due to how Sanji worded his letter. He wasn't beaten or anything, but it turns out he is a mostly unwilling captive in Capone Bege's "castle". Confirmed.

There will be a pirate with a 1,000,000,000 Beri bounty

Chinjao seems to be the reigning champion with over 500,000,000. Maybe Kaido had the bounty before he became an Emperor, given his past.

I thought it's only Shichibukai who have their bounties taken away, not Emperors?
- Theoretically (assuming Emperors had bounties on their heads to begin with), Emperors might have it taken away for two reasons: 1) a sort of Vetinari Job Security in light of the potential disruption caused by the capture/death of an Emperor (because the Five Elder Stars are probably pragmatic enough to realize that the Four Emperors effectively control the seas, and any disruption to that control would eventually cause trouble for the World Government), or 2) because going after someone powerful enough to become an Emperor is going to an awful lot of trouble to get oneself killed, and keeping the bounty open would amount to tacit endorsement of said reckless endangerment.
The Emperors are only really strong pirates. It's not a government rank or something like the Seven Warlords, it's just a title to recognize the four strongest pirates of the New World. Why would the Whitebeard Pirates be wanted criminals if they were in an alliance with the Government like the Warlords? Hell, why would anybody ever bother to turn them in in the first place if they don't actually have country rewards? (On that note, Ace had a higher bounty than Chinjao)
- Chinjao says over 500,000,000 so his might actually be higher.
Confirmed. Kaido's right hand man Jack has a 1,000,000,000 Beri bounty. Odds are the Emperors are even higher. As well as Dragon; being the "World's Most Wanted Man" surely means he has the highest bounty.
- In addition, more pirates have been revealed with a bounty of 10 digits or higher, such as Katakuri and Luffy.
- Also in addition, latest chapters have shown that Emperors do have active bounties: with all Emperor bounties being above 4 Billion beri, except Blackbeard, who, being the newest Emperor, has a bounty of 2.02 billion

Sanji is a Mafia Prince

His moniker of "Mr. Prince" way back in Alabasta and his adherence to wearing suits hearkens back to his old days of being a Mafioso's son. Oda's dropped hints before, and think about it:
- He's constantly wearing a suit and smokes a lot, which is in line with portrayals of Wiseguys in media.
- He's really sneaky when he puts his mind into it, as seen in Alabasta and in Ennies Lobby.
- Oda stated that he based Sanji from Mr. Pink in Reservoir Dogs. The sneaky, smarmy guy who managed to survive. What if he's not only based on Steve Buscemi's physical appearance, but used the gangland noir as a backdrop for Sanji's backstory?
While it might be true that his dream now is to find that mystical sea where all the world's fish dwell, the reason he's in the ship on East Blue might not be for good reasons. He might be there to infiltrate, or was on a mission from the family. OR, he ran away from home so he could chase that dream himself.
- The latter possibility appears more likely: after all, the family is now looking for Sanji only after a real picture of him has become public with the latest wanted poster (see the "only alive" specification). They may have not known he was alive after more than a decade, and he didn't care.
This is confirmed in so far as the Mafia Prince angle is concerned. Whether or not the dream to find the sea remains to be seen.

Luffy can hear the Voice of All Things

In chapter 648, one of the seakings remarks he's sure Luffy could hear their conversation with Shirahoshi. This is followed by another pointing out that such a thing happened once before, and we get a brief flashback of Gol D. Roger trying to figure out where the seakings' voices are coming from in the middle of an open ocean.

The Warship Island arc supports this as well. Or, you know, it would if it was canon.

Confirmed in chapter 821 when he and Momonosuke hears the voice of Zunisha when Jack attacks him.

Carrot has hidden herself in the Thousand Sunny, or in Luffy's huge backpack

The cover illustration to chapter 821 showed Carrot and Pedro with the Straw Hats that are going to rescue Sanji. It seemed just for show, as the only Mink known to join them was Pekoms, but in chapter 822, by request of Nekomamushi, Pedro joins the team. Hard to think, at this point, that the second Mink prominently featured in the illustration won't be with them as well.

Confirmed as of chapter 823.

What may really have happened to Sanji in Zou

As seen at the end of chapter 811, between the coming of Sanji's group and the rest of the crew reaching Zou, Big Mom came to Zou too. To protect both the country, just ravaged by Jack's army, and his companions Sanji may have voluntarily offered his services as a cook for her, and found support from Pekoms who, after learning what happened to his homeland, felt indebted to Sanji and all the Stawhats, and may also push her for an open fight with Kaidou in the future, creating a convenient Enemy Mine situation. Sanji may have then forced Caesar to come with him because he couldn't trust to leave him with the others, and anyway Big Mom would want him to counter any gas weapon Kaido's forces could use - and of course, for the money he swindled in the past.

This is so close so far. Pekom's reaction was dead on to what you said, and Sanji's reasons for possibly taking Caesar with him is likely similar to this. What's missing though is that Big Mom wanted Sanji to go with her crew, rather than him volunteering himself. Still, if we find out soon that Sanji accepted her "Tea Party" for the reason you suggested (he didn't want Capone to hurt Zou and the Straw Hats), then this is practically Confirmed.

Vivi's going to be brought back into the story soon.

No big reason, she's just gotten an awful lot of title pages lately after only getting one in years and years after the Alabasta cover arc was over.

Vivi did tell her father and Igaram at the end of the Alabasta arc that she wouldn't have been able to keep up with them, anyway.
They might appear during reverie.
Indeed, she's finally made another appearance in manga canon not too many years after she got an increase in cover stories. Confirmed.
- Also confirmed that she would attend Reverie, though Cobra was able to attend as well.

Kidd refused to work under Kaido

Apoo seems to be working under Kaido now, but I get the feeling that Kidd isn't the type of guy to go for being a subordinate. Perhaps he split up his alliance and plans to attack Shanks on his own now rather than work under Kaido. As for Hawkins, it's a total toss-up as to whether he also went under Kaido as well.

The appearance of the Den Den Mushi makes it fairly clear that the voice on the other end is Apoo.
Extremely unlikely. Impulsive though Kidd may be, splitting up an alliance mere days after completing it without getting anything done would be a colossal waste of time and energy for him. Not to mention, the end of the Dressrosa arc shows his alliance still holds strong. Maybe Kidd doesn't work directly under Kaido, but he very likely didn't downright refuse to work under him either.
I wouldn't be surprised if he did refuse. Kidd's shown in Sabaody just how bad his temper is when he outright threatened the other two Supernovas.
- Seemingly confirmed by chapter 824. Kidd has been imprisoned by Kaido and is gravely injured.
- Confirmed by later chapters. Kaido landed on the island where the three of them were meeting, and offered all of them the chance to work under him. Hawkins and Apoo joined him, Kidd didn't, and Kaido beat him up and imprisoned him, hoping to break his spirit and make him an underling.

Sanji will probably be caught by Big Mom on the next arc.

It may be a stretch, but I think Big Mom crew will put all the Thousand Sunny crew on a spot, Sanji will step up and offer himself as tribute to cook delicious food for Big Mom.

Oddly enough, Confirmed but also Jossed. It seems they were briefly captured by Big Mom, but escaped, all of it offscreen. Unfortunately, while some translations clearly imply that they were actually on her ship captive and escaped, others make it sound as though they "escaped" from her ship as in they evaded her on the Thousand Sunny.
Confirmed in a more traditional sense later on. She most definitely is interested in his cooking like you said, but it turns out she has other reasons to take him as well.

Bepo and Pekoms

are Minkmen, or "Fur People"They both are Talking Animals with dot eyes and a similar body structure (such as their small feet). Minkmen are mentioned on Duval's list of slave prices, but have not been shown yet.

Confirmed with the introduction of the Minkmen after chapter 800.

Both Bepo the Bear of the heart pirates and Pekoms the lion of the BM pirates are Minkmen, and the Demon guards of Impel Down, known as 'awakened zoans' are minkmen who have eaten their respecting zoan fruits.

When we first saw the list of slave varieties at Sabody it included long arms, long legs, snake necks and mink-men, since then we have seen a few long arms (such as Appo and Ideo) and Tamago and Blue Gilly the long legs but no minkmen or snake necks.

Since then we have met bepo the talking bear and pekoms the talking lion, what is noticable about Pekoms and Bepo is that they are slightly human shaped. particularly when you remember Richie the lion of Buggys crew is shaped like a normal lion.what we also know is that Pappug the starfish is a normal starfish who taught himself how to talk, and he is an anomaly as a talking animal while Bepo and Pekoms arn't seen as being as odd, except by Luffy who doesn't know much about the world.

Confirmed for Bepo and Pekoms being Minks, but it's unlikely the Awakened Zoans are Minks.
The last bit of evidence is that Pekoms, Bepo, Minotaurus and the other demon guards all have the same beady little black eyes.

I propose, that mink-men in fact means fur-men, and refers to a race of people who are all shaped like different animals, similar to fish-men who are all shaped like different fish.And this would explain what an awakened zoan is: a minkman who has eaten the zoan fruit of the animal he resembles, e.g Minokoala ate the koala fruit.And this would explain why the awakened zoans are somewhat mindless and super healing, their animal nature has been replicated two fold. however they cannot be animals who have eaten animal fruit as that would just make them enlightened, as oda stated what would happen if a man ate the hito hito no mi.It 'awakens' them because they are not animals, but animal-men.

Awakening is a more powerful form of a devil fruit like turning everything to string

There are pirate crews known as the Club Pirates and the Diamond Pirates.

We already have the Spade Pirates and the Heart Pirates, as well as a huge organization run by someone named Joker, so why not?
Semi-Confirmed: Joker/Doflamingo's top executives all have a card naming theme, and Law was supposed to be in the Heart seat.

Sanji is the son of a famous high class family and one of the Five Elderly Stars is his grandfather

Second part might be Jossed since they're a famous family of assassins.
First part, however, is confirmed. The Vinsmokes are not only high class Assassins, but the WG still considers them high ranking nobles even though they rule over no land. At the least, their patriarch has enough pull to get Sanji's bounty changed himself. And, again, they're rather famous in the New World.

Sanji is actually North Blue royalty.

When Sanji first briefly fought Montblanc Cricket we see they're both using similar techniques, then we see the storybook King of Lvneel, who looks more like the current Sanji than the realistic flashback to the king. Oda has been known to slip this kind of foreshadowing in (like Luffy's drawing of the shipwright he wants).Added to that, he calls himself 'Mr. Prince' in the Alabasta arc and in one of the SBS results for favorite attack it even says 'He's a real prince'. When he tells Kuma that he'll be causing more trouble than the rest of them combined, he's doesn't just mean as a pirate.I wouldn't be at all surprised if the whole running gag with the wanted poster is a way to obscure that Sanji's face would be so identifiable in the North Blue there would already be a fuss.

Wow. You know, this is really starting to look likely as of the Zou Arc. Especially the Wanted poster thing; what happened when he finally got his face on it? Something unusual of course; he's wanted only Alive. Perhaps he IS an important person.
Jossed, He turns out to be a scion of a family of assassins from North Blue.
Aaaand congrats, this is now officially Un-Jossed; they are a royal family... who just so happen to also be a family of assassins. So Confirmed

Sanji is a twin or a triplet

So with the latest info at this time, we've gotten a look at a curly-browed man who looks a lot like Sanji. He doesn't look like he's older than him though, so it's possible Sanji might actually have at least one twin out of his 3 brothers. Of course, the man on the ship could also be a cousin, but we'll see.

He's been revealed to be his younger brother Yonji, but Ichiji and Niji (probable names at this point) may still be Sanji's twins.

Close enough, he's a quadruplet.

Big Mom will have Hidden Depths

Because she seems like an anticlimatic reason to do everything for sweets

Not necessarily. While hidden depths would be interesting, it wouldn't be very anti-climatic to have simple, extremely hedonistic villain. Based on what we've seen, she actually makes a fairly good Evil Counterpart to Luffy and the rest of the Strawhats, the only difference being she cares nothing for her nakama.
- Unless her hidden depths are Mama Bear tendencies. That would take her Red Baron to the next level: she doesn't give a shit about her henchmen, but she does at least love her daughters deeply enough to inflict hell upon whoever lays a finger on one of them.
- I say we count this as Confirmed, since probably no one was expecting her to have the whole "utopia" goal. More specifically, she wants to become family with every race in the world and have a family dinner with them in harmony, allegedly.

One of the Firetank Pirates crewmates is married to one of Big Mom's daugther's

Since it has been stated that Big Mom marries her children to have connections with her alliances, As shown with Aladin of the Sun Pirates It makes sense that one of the Firetank Pirates has done this as well. Most likely Gotti.

Confirmed with the captain Capone himself.

Lola is in fact one of Big Mom's daughters

In the latest chapter, we see Capone's married to one of Big Mom's daughters that's the spitting image of Lola. Coupled with the fact that Lola's mom is supposed to live in the New World, it only makes sense. This also means the vivre card will play a big role as well.

This might be a WMG if it was said before Whole Cake Island arc. As of now, it is just waiting to be confirmed.
- Confirmed as of Chapter 835 by her own father!

Some of the Charlotte daughters have already been introduced.

Just like an above WMG states that some of the Vinsmokes have already appeared without us knowing, it's possible that some of Big Mom's daughters (or nieces, if they're not directly related to her; we know so little at the point this entry is written) have already appeared. Lola, Bonney, the three-eyes girl in Big Mom's crew...

Confirmed as of Chapter 835 by one of Big Moms exes whose Lola's father.

Big Mom is Lola's mother.

Lola herself says that she was born in the New World which is where Big Mom is at. Lola's crew also points out that Lola's mom is an extremely powerful pirate.

It should be noted that Lola's hair color also matches the hair on Big Mom's Jolly Roger.
- Plus, a woman in the Firetank Pirates (Bege's crew that allied with Big Mom) looks insanely similar to Lola, to the point that even Sanji noted the difference (Though he didn't remember Lola right away). She may or may not be Big Mom's daughter as well, but it's not impossible.
- Big Mom has many, many children, and one of them has gone off to seek a husband of her own.
Confirmed

Sanji's two older brothers are named Ichiji and Niji

Or something very similar to those two names, possibly Itiji for the eldest. "San" is the pronunciation for 3 in Japanese, and since Sanji is the third son, logically his two older brothers would follow that scheme. If this turns out to be true, it's a rather obvious guess, but since nobody else said it here yet...

Considering his older sister is named Reiju (With "rei" meaning "zero") and his younger brother is Yonji (With "yon" being Japanese for "four"), it seems likely the two older brothers will share a similar Theme Naming.
Finally Confirmed in chapter 838.

Big Mom's oldest child will be important in some way

After all, if anybody could provide valuable info on her, it would be the eldest child.

WMG: Her oldest child is Lola.
WMG: Her name will be Charlotte Berry
Confirmed, her oldest child is named Charlotte Perospero and he's an important plot device in Caesar's story so far. The mini WMG's here are Jossed however.

A Worst Generation member will become a major villain. Besides Blackbeard.

After all, what kind of person would put up a real good fight against Luffy, but one who started at about the same time as him, about the same age as him, and has been getting stronger at about the same rate as him? I'd bet my chips on Eustass Kid. He may be forming an alliance now, but I think he's going to betray the other members, including Killer, and backstab them once the alliance's goal of defeating Shanks is complete so he can claim all of the reward and glory for himself. Naturally, if he defeats Shanks, he will become a target of Luffy's, and the two will find themselves pretty evenly matched. He is also, in a way, an opposite to Trafalgar Law: Whereas Law is calm and has dedicated his life to learning how to heal people, Kid is loud and is a psychopathic murderer. It would fit the pattern that if Law decided to side with Luffy and fight alongside him, Kid would stand in Luffy's way and will fight Luffy with everything he has.

Capone seems to be behind some of the unpleasantness the Strawhats are facing as of the Zou arc.
Kid seems to have been beaten and imprisoned by Kaido and might have been betrayed by Appo so he might be willing to ally himself with the alliance for revenge.
Confirmed, Capone Bege is probably the third biggest obstacle in the Totland Arc aside from Big Mom and Germa 66.
The specific confirmation above is Jossed, but the WMG is confirmed : Capone ends up being an ally fro Whole Cake Island, but both Apoo and Hawkins are villains working under Kaido in Wano.

There will be a Gear Fourth version of the Gum-Gum Gattling.

Think about it: we already have Jet Gattling and Elephant Gattling. It seems very likely that a Gear Fourth variation is next to come.

Confirmed, it's called "Gomu Gomu no Kong Organ". He compresses his fists first and then fires them like the gatling gun.

The Vinsmokes have some sort of connection to Vegapunk

Maybe they're his number 1 customers or maybe he's a friend of Judge, but I'm thinking the Vinsmokes have done business with Vegapunk at some point. If they're the most technologically advanced army in the world then it's a no-brainer they're connected to him somehow.

Confirmed: Judge used to be a science research partner to Vegapunk.

Sanji lost his mom

Considering all the Strawhats have lost someone they cared about in their back stories except Sanji which was arguably the least tragic and he seems to harbor a lot of anger at his family and left at a young age it makes sense. There has been no mention of a mother, just his father, sister, and three brothers.

Any mothers in One Piece is to be presumed dead until mentioned otherwise. Let's see the list : Usopp's mother, Nami's adoptive mother, Vivi's mother, Shirahoshi's mother, Rebecca's mother, Robin's mother, Ace's mother... Now that I think of it, Big Mom deserved the title yonkou already for surviving this far. It is mentioned in SBS that Oda said 'mother' is the opposite of 'adventure', thus his tendency to kill of mothers.
- WELL, I wouldn't be surprised that this poor woman didn't survive quadruplet birth...
- Confirmed; the siblings' mom died when they were kids.

Sanji's mother was another White Sheep in the Vinsmoke family.

Judge does mention that there is "nothing to be gained from following the legacy of the dead", so maybe she was the one person in the family who genuinely cared for her children like a mother would, and tried to pass her kindness onto them; hence why Sanji is so nice (despite his flaws)

Confirmed, although whether Judge was abusive to her for her kindness is unknown at the moment.

Reiju bails Sanji out in the flashback

She's the only one who's sympathetic to Sanji out of all their siblings and he "suddenly disappeared" one night. The only person who'd give a shit about Sanji's well-being that has been introduced so far would be her.

Confirmed in chapter 841

Charlotte Cracker will accidentally provide the means Luffy needs to defeat him.

In Chapter 841, we see that Luffy has taken the decidedly insane plan to just eat as much of Cracker's biscuits as he can. Luffy is actually up to something: He has another power-up planned, which needs a vast amount of energy. And to gather that energy, he has to eat absurd amounts of food. It may be Fifth Gear, it may be a variant of Fourth Gear, or it may be something else entirely. But I think Luffy is going to use a very high-energy move that will be near-unstoppable but will burn through all the calories Luffy has taken in through Cracker's biscuits.

Confirmed, although not in the way stated here. Luffy actually just activates Gear 4th with the balloon belly and all, dubs it "Tank Man", and blows Cracker away in an instant. All because Cracker filled him up with the biscuits.

There are other forms of Gear Fourth

I know I'm not the only one who thought that Luffy calling his first transformation specifically the Boundman and not just Gear 4th means that there's probably other forms of it as well.

Confirmed! Although it's not clear if he just made it up on the fly or already had it in mind, Luffy activates Gear Fourth while having a massive balloon belly and dubs the new form "Tank Man".
Further confirmed in Chapter 894, with the reveal of Gear Fourth: Snake Man. In addition, the fact that Snake Man exists suggests that Tank Man wasn't something Luffy made up on the spot.

Big Mom's oldest child will be important in some way

After all, if anybody could provide valuable info on her, it would be the eldest child.

WMG: Her oldest child is Lola.
WMG: Her name will be Charlotte Berry
Confirmed, her oldest child is named Charlotte Perospero and he's an important plot device in Caesar's story so far. The mini WMG's here are Jossed however.
- Perospero is stated to be the oldest son (chapter 834).

There will be another chapter entitled 'Luffy vs -insert nakama name here-'

We already see Luffy vs Zoro, vs Usopp, vs Vivi. Related to the above, there will be chapter about vs Chopper and/or Robin. Or maybe Luffy vs Law in the current arc.

A little off with the individual guesses, but sure enough chapter 844 is titled "Luffy vs. Sanji''. Confirmed.

The remaining Emperors (Kaidou and Big Mom) will have black hair and blue hair.

We've already got Red-Haired Shanks and Whitebeard. The significance of those colours? They're the Four Emperors.

Like Blackbeard?
- Since Blackbeard already has one of the orignal colors of the Gods, I guess Momma with be Bluebrows & Kaidou will be Yellow Sideburns then if it's both color and hair motif.
Confirmed for Kaido having black hair, we have yet to see Big Mom's.
Jossed for Big Mom though, a volume cover reveals that she has pink hair.

Pudding lied to the Straw Hats

Not about everything, but most things, as good liars mix in truths and half-truths with falsehoods. I have a few pieces of evidence about this. Number 1, she showed in her very first appearance that she's a good liar when she saved Luffy and Chopper's asses. Number 2, she's Big Mom's freaking daughter, and I think Pedro was right to think that her being afraid of Big Mom is reason enough for her to lead them into a trap (look at her nervous face when he says that). I mean, we know Big Mom wants to sacrifice Luffy at this tea party, so it would make sense if she had her daughter bring them right to her. Lastly, while I think it's probable she really did meet Sanji, notice that everything she said about him was things anybody could learn from looking at his Wanted Poster and/or secondhand knowledge (that he's gentlemanly, he's a chef, he has heart eyes, he's called "Black Leg"). So, just throwing all this out there. I mean, even as I say all this, I think she seems pretty genuine; but honestly, we have no idea what kind of effect being raised by a psychopath like Big Mom could have had on this girl's personality.

Oh, also, this might be shot in the dark, but it's possible the theme of this arc is "deception". Pudding lied in her intro. Pekoms is lying to his crew. Pedro seems like he's hiding something. Reiju and Yonji are hiding that they met the Straw Hats. "Niji" (Sanji's second brother) calls "Ichiji" (the first) a liar when he says he wants to see Sanji.
Good points, but Doflamingo is the living proof that the apple can sometimes fall incredibly far away from the tree, so I personally believe Pudding's personality is genuine despite being raise by Big Mom (Besides, who says her father didn't raise her?), and that she wouldn't lead the Straw Hats into a trap or sell them out. Or at least, if she does, that she'll regret it and that it won't be done out of malice (Kind of like Conis in the Skypiea arc).
Jossed, the living plants and objects on the island are the ones feeding Big Mom info, and Pudding is shown worried over having not been able to get to the coast.
... except NOT. She's been in league with Big Mom the whole time and is well known for her acting. Confirmed.

Sanji's bride "Purin" is the three eyed girl

Blink and you might have missed it, but a few years ago during the Fishman Island Arc, there was a three-eyed girl

◊ with a worried look on her face sitting near Big Mom when Luffy called her. Now, there's no way a girl with three eyes and chilling with an Emperor isn't going to get some sort of spotlight in the story... and there's also no way Sanji's bride is going to be completely normal looking. Two and two together would suggest that she's this Purin person.

Adding possible hilarity is that one of Sanji's eyes is always unseen, so it balances everything out. You got a (visually) one-eyed man marrying a three-eyed lady. And it fits Sanji's name, as "San" means "three" in Japanese.
- As of Chapter 824, this may be the case as Charlotte Purin's picture looks very similar to the 3-eyed girl we saw at the conclusion of the Fishman Island Arc.
- However (I'm the OP on this post btw) we find out she has 84 siblings in Chapter 828, so sadly, things aren't looking too great for the theory now. It's entirely possible that the similar looking girl with 3 eyes is one of her siblings. BUT, for the record though, let it be known now that a part of me thinks Oda is just double-trolling us; he knows we were expecting Pudding to be the girl with 3-eyes, and so maybe she is and he's just making us think she's not. It's still possible she's simply got her hair covering a closed eye on her forehead.

Confirmed in chapter 850. She's also evil.

Purin will be a terrible person, to the point Sanji will even break his "never hit a woman" policy

Whether she is the three-eyed girl on Big Mom's ship or not, she will be quite beautiful and Sanji will be mesmerized by her... only for her to reveal a very nasty side; his inability to hit a woman no matter what (even a monstrosity like Big Mom) will sting really a lot. Following a flashback on Sanji's life before the fated encounter with Zeff, showing us what trauma led him to that, Sanji will finally snap out of it and kick Purin to save one of his crewmates from being killed by her. And given how Sanji's increases in power have worked post-timeskip so far, the loss of that handicap will make him incredibly more powerful - Luffy will be having a hard time against Big Mom and it will be Sanji who effectively defeats her.

This is extremely doubtful. Remember, Sanji wouldn't hit Kalifa even if it meant risking not being able to save Robin and/or his own death. At this point I'd have to imagine he would rather pull an Ace and Take The Bullet if Purin was going to kill a crewmember rather than hit her.
Considering the first look we got at her personality in chapter 826, it's pretty much Jossed. She's quite the opposite, a really Nice Girl who's even noted by Nami to be "far too forgiving".
- Except NOT. She was pretending to be nice the whole time, and OP hit the nail on the head with that part of the theory. It remains to be seen if he'd hit her, but at least half of this is Confirmed so far.
- The second part is now Jossed. Not only does Sanji not hit her, he instead goes so far to call Pudding's third eye beautiful- a display of kindness that shocks her to the point that she has a Villainous Breakdown.

There will be a massive falling out between Big Mom and Vinsmoke Judge.

They have opposite opinions of people who cook: Judge considers chefs almost as slaves and his sons treat them as subhuman, whereas Big Mom, being a Big Eater, has the utmost respect for them, and she and her family treat them as valuable. This will come to the forefront considering both Sanji and Pudding are chefs.

Looking pretty likely right now, though probably not for the reason cited above. Big Mom reveals that she doesn't actually like the Vinsmokes and she's briefly becomes enraged at Judge when he asks her about Giants. Even later on, Judge and his sons casually talk about Sanji not really being one of them and they scheme against Big Mom... all while unaware that Big Mom's Animate Inanimate Objects are listening to every word.
Confirmed, pretty much: the Charlotte family's plans to kill the entire Vinsmoke family and take over their science and technology can't lead to anything good between them.

Pudding will hypnotize Reiju

Obviously the Charlotte Family needs Reiju to be with the Vinsmokes on the wedding day so they don't get suspicious, so Pudding might use her eyes to hypnotize her into being quiet.

Confirmed, basically. Though her power is seemingly not tied to her third eye, she does in fact have the ability to alter people's memories. It's not exactly hypnosis, but she edits Reiju's memories so that she has a false recount of where her wounds came from.

Reiju will pull a Heel–Face Turn.

After all, she only participated in laughing at Sanji because she would otherwise be bullied herself; maybe she does genuinely care for him after all, and will gain the strength and backbone to stand up to her other brothers after seeing more of Sanji's kindness and resolve.

Given that she's been revealed to be more and more benevolent in every chapter, I'd wager this is extremely likely.
Pretty much solidly Confirmed by chapter 852.

Sanji is (indirectly) responsible for his mother's death

This is kinda recycling from Chopper's background story (note: he was kicked out from his herd too)

Originally, Sanji's mom was going to die from the illness anyway. Sanji tried his hard to cook a food. It is noted by the maid it was awful. She decided to eat it anyway to make him happy. Unknown to him, she had an allergy to the food that make her condition worse. Judge found out about this later on, but he didn't tell Sanji. He did held grudge towards his son.
The original guess is confirmed, but the details are jossed. She took a drug in order to undue the effects of Judge's personality-altering modifications on her boys while she was pregnant with them. Though it sadly failed on three of them, it worked on Sanji, who she considered her crowning achievement.

Sanji's explosive bracelets are duds

At some point Reiju will reveal how she truly felt about Judge and her brothers. They will beat her and Sanji, blind with rage, will attack them with no care to what is going to happen to his hands... And nothing will happen, because she had put bracelets with no explosive at all on Sanji.

Confirmed, although in completely different circumstances.

Judge DOES love his wife

However her death made him the person he is now. Despite the lack of romance in One Piece, Oda's fond including this in flashback, like the Kyros story and Tesoro's background.
If this guess is true, I'm going to extend this is the same with Dragon's background. Luffy's mother's death driven him to do revolution, and he left Luffy behind for safety.
Seemingly Confirmed by chapter 852. Even though we only see him arguing with her, Reiju implies that Judge only really started to get hard on Sanji because he blamed him for his wife's death.

There is a three-eyed tribe in the OP world

Ok. So. The three-eyed girl. Since Pudding says she has 38 sisters, it's looking more like this infamous 3-eyed girl we saw years ago is actually one of her siblings. So, the easy guess now would be that one of Big Mom's 43 husbands was from a 3-eyed tribe, and that's where this girl came from. I'm not exactly ruling out the possibility that it could still be Pudding though.

It is Pudding, though whether her father was a three eyed man or her third eye came from a Devil Fruit is yet to be seen.
Looking very likely at this point; there almost has to be a three eyed tribe because her Devil Fruit seems to be unrelated to her eye.
Confirmed in chapter 853.

Brook will be essential in defeating Big Mom.

He'll be captured and she'll try to absorb his life. Since Brook is already dead (YOHOHOHOHO), it will knock her out or leave her comatose.

Another way could be that Big Mom knew Brook before his demise (in fact, she was a fangirl of his group) and realizing that Brook is her idol from back then (because his new persona of Soul King is completely different) she gets stunned long enough for others to deliver her a hard blow
Well, you're close so far, as the latest info makes it seem like Brook will be essential to stealing her road poneglyph. Which probably counts as "defeating her".
Though the "Big Mom was a fan of Brook" part is jossed from the get-go, as Brook never performed publicly (Let alone had a band, for that matter) when he was alive. He was a musician and a pirate, and didn't start achieving stardom until the Time Skip.
Confirmed,(although not for the reasons listed above); Brook taking the Road Poneglyph is easily one of the worst blows the Straw Hats gave her, and it's arguably even worse for her than if they had just beat her in a fight.
Even better, later on he triggers Big Mom's Weaksauce Weakness by breaking the picture of Mother Caramel.

Something's off with Sanji's bride photo

Because Sanji and picture had been running joke since the beginning of the series. Several ways it could go :

It was a fake/wrong picture, similar like Sanji and Duval issues.
It was an old picture, the woman had either turned into old woman or a Gonk, something like reverse!Alvida.
The photo only showed the woman's top part. Maybe the bottom part is an eight legged spider or something weird, non human.
- Seeing as how she otherwise looks identical to the 3 eyed girl, I'd be willing to bet that's what's missing. Notice her hair obscuring her forehead.
- Unlikely. Pudding has 88 siblings, including 38 sisters, so it's more likely the three-eyed girl is one of her sisters.
Jossed: with the Sanji rescue team actually meeting Pudding who looks exactly like her picture and is madly in love with him.
Or Not! Later Confirmed; She is indeed the three eyed girl. She's also evil.

Lola is Chiffon's twin sister

Her name is shortened from Roulade

Confirmed in Chapter 835 to be sisters, no further information about the twins part yet.
And now Confirmed in Chapter 858 to indeed be twins, with Lola being the younger one. No info yet on whether Lola has a full name though.

Sanji's "strict upbringing" will become a major point in his back-story.

As he reveals to Nami in the Enies Lobby arc, he had a "strict upbringing" that forbids him to ever assault a woman (aside from the fact that he's a Chivalrous Pervert anyways). And now, with the recent revelation that Luffy had indeed lost an important person from his past (chronologically, Sabo and then Ace), Sanji remains the only Straw Hat who hasn't lost an important person by death in his back-story (his mentor Zeff lost a leg, but is otherwise still alive). At some point later on in the story, Sanji's life prior to his being on the ship that Zeff attacked will be made clearer—and it'll be shown that his important person that he lost back then was either a mother figure or a female relative, and she died in such a horrific manner that he developed a strong instinct to protect all females. (And the only reason it's never been brought up, aside from Oda concealing it to be The Reveal at the right time, is that Sanji simply doesn't like to talk about it.)

Correction about Sanji being the only Straw Hat who hasn't lost an important person to death—he actually has, if you count his fellow cooks on the ship attacked by Zeff, who lost their lives in the tidal wave that came up almost immediately after.
- Zeff remarks that he hasn't seen any bodies wash up, implying that they might not actually be dead. Even if they ARE dead, coworkers from the same ship isn't on the same level as losing a family member (biological or not) or a friend as close as Kuina was (basically a sister).
Addition from the original poster: If Sanji does have such a person in his back-story, then very likely they're the ones he would've first heard about All Blue from. After all, he knew about it before he met Zeff; he had to have learned about it from someone, right? And then that person's death both gave him the desire to find All Blue and instilled in him the instinct to protect women from harm.
- Possibly it was his Missing Mom. Recent chapters have revealed that she died when Sanji was very young, since his father Jajji scoffs at Sanji's demeanor as "the remnant of a person long dead" (indirect quote), and it's implied that Sanji got his kinder nature from his mother. So, perhaps she was the one who first told him about All Blue, and her death motivated him to seek out the legendary sea for her sake.
- As it turns out, the "strict upbringing" was largely thanks to Zeff telling Sanji that "men must not hit women" is a rule that existed long before the age of the dinosaurs, and threatening to cut Sanji's balls off if he ever stepped out of line in that regard.
Confirmed. Did you expect any less?

Pudding will be the one ruining the wedding plan.

On the sole courtesy of not being able to stand Sanji's more perverted traits while on the altar, finding the mere thought intolerable and become incapable of saying the words of acceptance when asked, ending up with her saying "No" and her trying to shoot him ahead of schedule as a result while the rest of the guests sits stunned over her refusal, resulting in a massive train-wreck when the disaster dominoes starts falling over afterwards...

She does ruin the wedding plan but not like that When she lifts the veil to show him her third eye, he touches her like he did Violet by sincerely calling it beautiful. Turns out she was roundly mocked for it, even Big Mom found it creepy and couldn't bear to look at her. She developed her cruel and twisted personality as a defense mechanism. Hearing someone compliment it causes her to breakdown in tears and miss the deadline prompting Big Mom to order the priest to do it, Katakuri sees Sanji will dodge it, so does it himself. Sanji dodges that, that's when Luffy makes his grand entrance.
Yeah, even though the details are off, this is basically Confirmed. She messes up pretty badly.

Caesar Clown will be forced to make an Enemy Mine situation with the Straw Hats.

He's way too much of an asshole to join their crew, not to mention the fact they both hate each other's guts, but he's just as neck-deep in shit as the Straw Hats, so both parties may have to swallow their pride and temporarily work together in the future, with their truce ending the second Big Mom is off their backs. Of course, if this happens, I also predict Caesar trying to back-stab the Straw Hats at some point, but still.

Confirmed.

Mother Caramel basically raised Big Mom/made her into what she is today

I think Big Mom was likely raised in like a Catholic orphanage type of place and Caramel was one of the head nuns there. Whatever she taught Big Mom, it had a profound effect on her and made her into who she is today. That's why she's so important to her. As for how it happened, I think it's one of two things. One, Caramel was a terrible Jerkass who instilled those bad values into a young Big Mom in the first place, or Two, Caramel was a good lady who's death/disappearance spurred Big Mom to become the lunatic she is today.

Confirmed. Ironically, Carmel was a nasty, evil woman, yet she raised Big Mom to be kind while she was in her "Mother Carmel" ruse.... but then Big Mom turned evil anyway.

Big Mom will turn out to have a truly tragic backstory though it won't eclipse her evil of course

Oda doesn't do anything without reason, he introduces to a picture of Mother Caramel, an important figure in Big Mom's life who she refuses to talk about, even to her children. There's a story there. Not to mention Chiffon implies that Big Mom's troubles with giants started long before the Lola incident. Then there are the parallels to Doflamingo, both being a Psychopathic Man Child professing the idea of "family" provided they don't get in the way of their own plans.

Confirmed, sort of. Her backstory wasn't tragic in the traditional sense, as she didn't really have anybody do anything horrible to her... Instead, it's tragic because she was an otherwise innocent little girl who was just a natural born killer with a deadly eating disorder (as in deadly for others, not herself) and was basically doomed from the start.

Big Mom ate Mother Caramel during one of her earliest hunger fits.

And the event snapped her back to her senses, but the trauma made her forget about it, leaving her puzzled on where Mother Caramel "vanished" off to. Once she realizes what really happened, all hell will break loose...

Alternatively, she may have just killed her rather than eating her. And alternatively alternatively, maybe Carmel Took The Bullet from that giant trying to kill Linlin.
Since now we know Soul power was originally Carmel's, the implication is that is how Big Mom got it from her in the first place, chilling thought isn't it...... I wonder if Teach had done the same to get Whitebeard's power......
Because eating someone is obviously the only way one can "steal" a Devil Fruit from someone else. Just ask Sabo. Seriously though, while Carmel's sudden disappearance and former power is cause for alarm, these alone are too weak on their own to claim Big Mom ate Carmel. The possibility is there, but it's not the only one.
- Oh please, why so hostile? Did I ever say it is the only way to steal a power from someone else? It is hard to discuss with someone who refuses to get off their high horses, much less one with a misunderstanding with what a Wild Mass Guessing is, hint: it is supposed to be "wild" guesses made with insufficient information at the time of the writing. Also if you think what Blackbeard did with Whitebeard is that he just pull out a fruit from his ass and eat it inside the curtain, I must say it is kind of disappointing.
  - My apologies for the earlier entry, it wasn't my intention to sound harsh or agressive; I didn't think what I typed through. However, while I realize the implication is stronger than I thought, as well as the most likely explanation at the moment, (save from Linlin getting her powers from eating Carmel directly; I believe she gained them later), I do believe there is another explanation: Carmel set it up in order to break Linlin, cooperating with some Cipher Pol agents. She could run away with the kids while leaving shreds of their clothes behind, and have a disguised agent enroll a mentally broken Linlin under Cipher Pol or the Marines, with the false promise they'll help her see Carmel again.
  - I apologize as well, I didn't clearly explain my believe that WMGs are not supposed to be argued with, but only Confirmed or Jossed after the fact. Your suggestion is very interesting, and if true would require further flashbacks to show the aftermath, like how and when Carmel die (she has to be since her power went to Big Mom), how Big Mom got her hands on the Soul power, how the government lost the plot and got a Yonko instead of a Fleet Admiral out of the deal. I like it very much.
Unfortunately, since the flashback is over, I have a feeling this is one of those things that's merely implied and never going to be directly confirmed. But, at the very least, we can say that it's highly probable going based off of the information we got. I mean, what other explanation could there be? Like, honestly.
Confirmed: She did eat Mother Caramel, and the rest of her friends in the orphanage in the middle of one of her hunger fits.

Big Mom used to be a beautiful woman/girl

Maybe not even far from Sanji's imagination. She became the current abomination due to her multiple pregnancies and her penchant for sweets (maybe she's even diabetic?). It is a known fact that pregnancy changes the body and being a mother to 85 children might have done just that. A woman in real life wouldn't be able to survive a 1/4 that number. Also, she may've become sweets obsessed (another plot point for Troubled Backstory Flashback) because she needed the energy to keep on going with so many pregnancies

Bonus points if Big Mom, in her youth, looked and dressed much like Nami looks now, considering Big Mom's Vivre Card causes the Homies to defer to Nami as Big Mom.
Jossed.
Actually, nope! Oda confirmed in a SBS 86 that she was indeed beautiful in her late 20's. She still looked recognizable, but she was much more slender and attractive. As for dressing like Nami, it's hard to see, but she does indeed appear to be wearing a bikini top in her picture◊.

Sanji will protect Reiju

At some point, the Vinsmoke will turn against her (maybe she pull a face heel turn, or suspected betraying the family). Sanji has some chivalry code, my guess is he is actually angry at himself since he was always helped by her during the childhood instead of the other way around. The recent arc would be a good time to show off his gratitude.

I'm expecting it like a parallel with Luffy and Ace. Ace was always stronger in the past, but in the end, it's Luffy who saved him instead. Minus death, of course.
As of 852, this is extremely likely considering he outright says he doesn't want her to die alongside the rest of their family.
Confirmed, though in a different scenario. He directly blocks an attack from Big Mom (alongside Luffy) that was meant for Reiju.

Streusen was responsible for Totland's appearance.

That is, Whole Cake Island and the surrounding islands being made of food, even the surrounding oceans being made of juice and such, goes hand-in-hand with someone living there with the ability to turn things into food. We've only really seen him chopping up a log to turn it into steaks (or something similar), but theoretically, there's nothing stopping him from turning an entire island into some edible material. Perhaps Whole Cake Island and the other islands were once normal islands, but Streusen came by and, for one reason or another (possibly a contingency plan to feed Linlin if she gets a hunger craving), converted them all into food, with each island having a different theme so he can easily remember where to go if he needs something specific.

Confirmed. Wasn't this already all but stated in that chapter though?

Big Mom's "eating disorder" will flare up again

Somehow instead of fixating on the photo she will instead focus on the cake, forcing Sanji, Pudding and all the other top chefs and bakers of Totland to work together to make a new cake.

Yup. It's also just Chiffon plus Sanji and Pudding, not anybody else, but this is Confirmed either way.

There is a Devil Fruit with direct superiority to the Gum Gum Fruit

I'm surprised that this both hasn't been theorized yet and that it hasn't appeared in the story yet. Somewhere out there, somebody has a "stretchy" Devil Fruit that could be considered superior to Luffy's rubber powers. My money would be on a liquid metal Logia user.

So far, Charlotte Katakuri seems to fit the bill. He's a Logia user that can change into a hard, stretchy, sticky substance that vaguely looks like Luffy when he uses Gear Third...
Seeing as how the Mochi Mochi no mi (Katakuri's fruit) is being built up as "Luffy's, but better" (especially in chapter 879) I'm gonna go ahead and say this is basically Confirmed. Katakrui's fruit was retconned into a Paramecia as well, making it even more likely it could be considered the Gum Gum fruit's superior.

There is a relatively slim version of Gear Fourth

So we have two versions of Gear 4th now; Boundman is a balance of power, speed, and defense while Tankman focuses on further enhancing power and defense and gives up speed (I assume). So, to balance it out, there must also a Gear Fourth form that focuses on power and speed while sacrificing defense (IE No balloon belly). But to make up for the missing balloon belly, this form must be fast. I'm talking really, really fast. Like faster than anything we've seen in One Piece to this point aside from Kizaru. I don't expect him to be skinny because that goes against the point of the muscle balloon, but perhaps he beefs up his lower half rather than the upper half.

Confirmed in chapter 895.

Luffy's bounty will rise again after the Totland Arc is over

Despite the fact that it only just went up, keep in mind that Luffy is messing with Emperors now and there's a very real possibility that his bounty could jump to over a billion if he actually manages to cause any lasting damage to Big Mom. In fact, I feel as though even so much as taking out Germa 66 will warrant at least a 200,000,000 increase to his current amount.

Confirmed in chapter 903, and indeed, it rose over a billion.

Almost all of the Straw Hats and allies on Whole Cake Island will get massive bounty increases.

Once word gets out that Luffy and co. defeated several of Big Mom's underlings and made a copy of her Road Poneglyph, their bounties are gonna skyrocket. Luffy might actually be worth close to a billion, and Carrot will also get her first bounty. The only one who may not get an increase is Chopper, because as you know, the World Government may not recognize him. Sanji's bounty also rises higher than Zoro's for the first time and he gets to celebrate that.

Possible, but I doubt the Wano side of the Straw Hats will get a "massive" bounty upgrade since they weren't involved with the events on Whole Cake Island. The only other Straw Hat I do expect to get a massive bounty upgrade is Robin, for her ability to read poneglyphs; now that the Straw Hats have Big Mom's poneglyphs, the Marines might just shit their pants at the thought of Robin deciphering them.
- That's why I said "the Straw Hats on Whole Cake Island will get bounty increases, not anybody else.
Now very likely; Luffy wants to fight and defeat Katakuri at full strength, so that he (Luffy) becomes stronger and develops his Haki, so unless their fight is somehow interrupted, the possibility that Luffy's bounty will double and reach a billion is quite likely. I also suspect Brook's will get the second biggest increase, since he was behind the actual copying of the Poneglyphs.
So far, CONFIRMED for Luffy and Sanji. Luffy's in particular rises by a billion while Sanji jumps to 330,000,000; also, this means that Sanji's bounty did in fact go higher than Zoro (and he DID celebrate it). So far, it's yet to be seen if the rest of the crew will follow suit though.

One of Big Mom's sons is alive...

And he could throw the wedding in the sky because of a revelation (like all sons and daughters of Big Mom are a piece of soul of this last).This son maybe Muscat,the 10th son who is dead in first chapters of this arc.

What?
.... Believe, it or not, it's Confirmed that Muscato is alive. He doesn't do anything of note though. He just kind of shows up again.

Sanji and Pudding will be the ones who defeat Big Mom

But not in combat, but through their culinary skills instead.And everyone else will help out to buy them time to complete the plan in the meantime.

Confirmed... sort of. The cake's biggest benefit was that her eating it stalled her long enough for the crew to escape, though Big Mom herself was fine afterward.

Pudding's "fond memory" of Lola was genuine

A Previous WMG suggested that Pudding attacked Lola when she found out she was leaving, but after finding out what her childhood was like, that became unlikely, and from the way it seemed in the recent chapter I'm going to suggest something else. Lola and Chiffon were the only siblings who treated Pudding kindly and she was genuinely saddened when Lola left.

Confirmed.

Jimbei won’t get his backstory flashback this arc

Or at least not the whole flashback. We’ll probably learn his dream but not entirely the tragedy of his life. That will be revealed in the arc when Luffy is “fated” to destroy Fishman Island.

We technically already DID get his backstory flashback, in the Fishman Island arc itself. But other than that, it's indeed likely that if he gets a second flashback explaining what happened at another point of his life, it won't be in the Whole Cake Island/Totto Land arc, which is already in its final stage. It's far more likely to wait until a later arc.
- That flashback was more about Otohime and Fisher Tiger than Jimbei, nothing in the flashback made him seem to be The Woobie to me personally, I don’t know about you, and as I said we don’t know what his dream is.
Confirmed, although didn't we already get a thorough flashback of his life in Fishman Island?

There will be another arc or couple of arcs between Whole Cake Island and Wano.

If the "Wano is one to two years off to come as of November 2017" part was really stated by Oda as well as not mistranslated, I heavily doubt an arc with so comparatively "little" left to do will take that long to finish, climactic encounter with Big Mom or not. I suspect another cooldown arc will come between Whole Cake and Wano, possibly involving the Germa.

Confirmed, although the Reverie Arc was mentioned to be coming before Wano for quite some time.

Nami will control Zeus and Prometheus and annihilate the enraged army

Since Zeus and Prometheus are homies and Big Mom's not present, Nami should be able to save her and Luffy's hides by using the Vivre Card to force them to burn/shock the enraged army.

Jossed. She apparently did control the thunderclouds that Zeus and Prometheus created, but not the Homies themselves. And she though she did manage to take out a lot of the grunt soldiers with a lightning bolt, the stronger ones easily survived and captured both her and Luffy.
Half-confirmed, half-jossed. Nami DOES take control of Zeus—and, by storing him inside the Perfect Clima-Tact, even takes Zeus with her outside of Totland. Prometheus, however, remains with Big Mom.

There will be a Mariejois arc.

The Strawhats will not be directly involved, instead, we'll be looking at all of the members of royalty we've been introduced to so far, and their entourages. With delegates from Alabasta, Sakura, Black Drum, and Ryuuguu most of whom are impressive combatants, it would be a shame to have them stand around and talk. During the Reverie, the Conference of Kings, Dragon's army will attack, and try to take hostages, possibly with another goal in mind regarding a resource the Marines have acquired (allies, weapons, hostages, technologies, etc.). Since we have a bunch of them, the Vice-Admirals will be involved, and this will act as an introduction to the Revolutionary army proper, with one or two more powerful subordinates of Dragon with equal importance as Ivankov showing up.

Confirmed save for the "Dragon takes hostages" part and the Vice-Admirals being involved (though a few of them do appear).

Reverie will be a Perspective Flip arc

With all the hype Reverie has gotten, it's doubtful it'll take place offscreen, but the Straw Hats have already passed Mariejois and there'd be no reason for them to head back. However, there is a certain honorary Straw Hat who is likely to be there: Vivi, getting a chance to be the main protagonist for an arc.

Highly, highly likely as of the Whole Cake Island Arc.
Confirmed, except for Vivi being the protagonist as there is none.

The Shogun of Wano will be a "goofy" character

As you know, it's usually anybody's guess whether a new One Piece character will look badass or totally silly. Since Kaido is already threatening looking enough, I suspect the shogun of Wano will have a crazy Gonk appearance not uunlike Raizo.

Confirmed to be a Gonk as far as his appearance goes.

The courtesan Komurasaki is Kouzuki Hiyori, Momonosuke's younger sister.

Right after she is introduced in depth the manga cuts to Momo telling Tama about his little sister, who would be 26 now. Komurasaki apears to be that age and she is obtaining a large amount of money. She claims she spends it but no matter how lavish her lifestyle she would no go through money that quickly. Also her attitude toward the people she swidles contrasts with her attitude toward her young assistant Toko.

In chapter 932, she announces herself as being the daughter of a samurai. Of course, the land is chock-full of samurai, but...
Confirmed: she herself spills the beans to Zoro in chapter 938.

The Seven Warlords of the Sea will disband

As of Impel Down, none of the Shichbukai seem to care about... Whatever it is the Seven Warlords of the Sea are supposed to care about. Now that Jinbe quit, Blackbeard has confronted Whitebeard and the rest of Maineford with his new crew full of Impel down prisoners, and Boa Hancock's title is in question, that leaves only 4. And all of them have reasons they could be fired as well. Kuma: He sent the Straw Hats away so that they could become stonger and possibly take down the World Government. Mihawk: Never really seemed to care to begin with. Moriah: Already defeated by Luffy, but wants to become the Pirate King. Doflamingo: Encouraged Sengoku to let Luffy and Ace escape because it would make it more fun, and responded simalarly when Blackbeard showed up at Maineford with his new crew.

This implies there were banded to begin with. The only thing they have in common is their agreement with the government, and the battle a Marineford was probably the first time they were all at the same place.
Seems more plausible now, given Fujitora's agenda.
- Confirmed: the Shichibukai system was abolished at the Reverie.

Pudding will be the one ruining the wedding plan.

She does ruin the wedding plan but not like that When she lifts the veil to show him her third eye, he touches her like he did Violet by sincerely calling it beautiful. Turns out she was roundly mocked for it, even Big Mom found it creepy and couldn't bear to look at her. She developed her cruel and twisted personality as a defense mechanism. Hearing someone compliment it causes her to breakdown in tears and miss the deadline prompting Big Mom to order the priest to do it, Katakuri sees Sanji will dodge it, so does it himself. Sanji dodges that, that's when Luffy makes his grand entrance.
Yeah, even though the details are off, this is basically Confirmed. She messes up pretty badly.

Trebol is a slime-assimilation man

Because it is revealed that his fruit power is not Logia.

Much like Pica who is a stone-assimilation man, Trebol assimilates with sticky, explosive mucus - lots of it - to give him a "thicker" body. How he can evade attacks is explained not just by being so thin, but also actively "moving" inside the mucus. We also see how his mucus detaches from him after he got badly wounded by Law.

This made me come up with a theory: for element-assimilation fruits, their element are technically not part of their bodies; just that the fruit's users move the element along with their bodies. By contrast, logia's elemental bodies are part of their bodies; striking them is as good as striking their bodies even though they won't be hurt - unless if the attacker is using Armament Haki. That is why Monet made a point of dodging her entire snow body when Tashigi is trying to attack her with Haki.

Seriously, this element-assimilation power could make a common subtype of Paramecia on their own.

Well, he's not "assimilating" the Slime like Pica assimilates stone, he's producing it the same way Magellan's Paramecia produces poison. Still, this is basically Confirmed; his powers do indeed work exactly like that.

There will be a Gear Fourth version of the Gum-Gum Gattling.

Think about it: we already have Jet Gattling and Elephant Gattling. It seems very likely that a Gear Fourth variation is next to come.

Confirmed, it's called "Gomu Gomu no Kong Organ". He compresses his fists first and then fires them like the gatling gun.

Sanji's bride "Pudding" is the three eyed girl

Blink and you might have missed it, but a few years ago during the Fishman Island Arc, there was a three-eyed girl

Adding possible hilarity is that one of Sanji's eyes is always unseen, so it balances everything out. You got a (visually) one-eyed man marrying a three-eyed lady. And it fits Sanji's name, as "San" means "three" in Japanese.
- As of Chapter 824, this may be the case as Charlotte Pudding's picture looks very similar to the 3-eyed girl we saw at the conclusion of the Fishman Island Arc.
- However (I'm the OP on this post btw) we find out she has 84 siblings in Chapter 828, so sadly, things aren't looking too great for the theory now. It's entirely possible that the similar looking girl with 3 eyes is one of her siblings. BUT, for the record though, let it be known now that a part of me thinks Oda is just double-trolling us; he knows we were expecting Pudding to be the girl with 3-eyes, and so maybe she is and he's just making us think she's not. It's still possible she's simply got her hair covering a closed eye on her forehead.

Confirmed in chapter 850.

Sanji's two older brothers are named Ichiji and Niji

Considering his older sister is named Reiju (With "rei" meaning "zero") and his younger brother is Yonji (With "yon" being Japanese for "four"), it seems likely the two older brothers will share a similar Theme Naming.
Finally Confirmed in chapter 838.

What will be done about Gold Roger's voice actor

Now that Chikao Ohtsuka has unfortunately passed away, Toei Animation has to figure out a way to incorporate future scenes of Gold Roger if he ever appears in future chapters. The best option would be to find a VA that can sound exactly like him.

Confirmed. He is now voiced by Masane Tsukayama.

O-Kiku is biologically male

This one was a long standing suspicion in parts of the fandom that O-Kiku might have been transgender when she was first introduced, but died down after a while. I was firmly on the woman camp, until chapter 939 with the reveal of his full name Kikunojo 菊之丞 by Hiyori， which the nojo 之丞 part has always been traditionally a male name, combine with the Kin'emon's initial attitude towards women when he first meet Nami, and the fact that O-Tsuru didn't recognize him even though they should have been old acquaintances since they both connected to Kin'emon and Kiku should have never aged a day for 20 years. The truth might be that Kikunojo was undercover after time traveling as a women to spy on Wano and wait for Kin'emon's return after gathering reinforcements, looking and acting differently while doing that.
- Confirmed.

Kurozumi ate the Ryu Ryu/Hebi Hebi no Mi: Model Yamata no Orochi

Hebi Hebi no Mi, Model: Yamata no Orochi confirmed.

Zoro will get a new sword when the crew visits Wano Country

Specifically, one to replace Sandai Kitetsu, his weakest sword.

Confirmed for the part about getting a new sword, jossed for the replacing part; he gets a sword called "Enma", a sword wielded by Kozuki Oden and the only weapon known to have ever injured Kaido. Instead of replacing Sandai Kitetsu, he replaces Shusui due to it being returned to Ryuma's grave.

In the opposite of Bruce

. San Juan Wolf has a DF that enables him to increase in size.

Makes sense on how he was able to be placed in Impel Down, and why he's so big.

Call that one as good as Jossed, considering that he has to swim alongside the Blackbeard Pirates' raft because he's too big for it.
Confirmed, actually! The reason he's able to swim in the water despite being a DF user is that he's just that big.

Pudding isn't actually acting, she just thinks she is

She actually has dissociative identity disorder, with her good personality being completely unaware of the evil one's existence and the evil one thinking the good personality is fake.

Jossed, we see her voluntarily turn her fake good girl act back on when she sees Brook in chapter 853.
- Seems that it is unjossed now. Boy that girl has issues...
Confirmed

Caribou is the Buggy of the New World

He has a reason to continue pursuing Luffy. He was introduced as someone to be feared, and after a run-in with a certain Straw Hat he's been reduced to more of a laughing stock. Plus, if Buggy is busy with things like being a Warlord as some other theories suggest, then they need someone else to fill the roll of the guy who chases Luffy even though he'll never beat Luffy. This would also tie in with the WMG of the Fishman Island arc being a mesh or echo of the East Blue events.

It does seem to be going in this direction, since Coribou has gotten a Butt-Monkey Cover Arc, similar to how Buggy did way back when.
- somewhat confirmed, but this isn't a guess with a concrete yes/no. However, guess who Luffy met in prison during the Wano arc, like how he met Buggy in Impel Down? And if what OP meant by "Buggy" was being comic relief, Caribou is definitely that.

Kyoshiro is actually Denjiro

We know he faked Hiyori’s death somehow, allowing her to escape. Denjiro has not appeared at all in the present, the only red scabbard not to do so. Perhaps the reason is he’s acting as a mole within Orochi’s shogunate?

If Denjiro had just dyed his hair and worked it into a pompadour, he could well pass as Kyoshiro. Maybe Kin'emon's dyed hair was brought in as a low-key Foreshadowing?
Confirmed.

Yamato will be used to confirm Kaido's species

Kaido is Ambiguously Human and there're various hints that he may be a dragon or an Oni. Yamato will be used as a Show, Don't Tell to put this theory to rest.

Confirmed. While we don't know the name of his species just yet, we now know that he is most definitely not a dragon.
Definitely 100% confirmed by Chapter 999. We still don't know Kadio's species' name yet, we definitely do know now that he is definitely now not a dragon as it is reveal he ate the Mystical Model of the Fish-Fish Fruit (whatever the hell that meant for now).

Buggy is now an Emperor

It'd be the sort of thing that Oda does.

Confirmed in chapter 1053: By means currently unknown, Buggy has risen to fill one of the now vacant spots.

Capone Bege's plan will be derailed in the most surprising and delightful ways

The moment I read what he's going to do, I thought that's unlikely to happen, whenever Luffy is involved in a plan he will find a way to screw it up, even when it's unintentional. Oda generally doesn't do deaths in the present with a couple exceptions. And finally Big Mom is a literal and figurative human juggernaut, killing a yonko is nigh-impossible (look at how much punishment Whitebeard took before he finally stopped moving). Just doesn't seem likely.

Hm, well, so far, everything's going according to plan. We'll see soon enough though.
Well, it was indeed derailed. I'm not sure if you would call it surprising though.... I think just about everybody figured Big Mom herself would stop the missiles in one way or another. Delightful though, I agree. The looks on their faces when she blew the missiles up were pretty hilarious.

Something terrible will happen at the Reverie, and the Revolutionaries will be framed for it.

What better scapegoats than them to justify the "cleansing" that the Five Elders want to carry out, after all?

Pretty much confirmed: Cobra was killed (something terrible) and Sabo (a Revolutionary) was framed for it.

Post-Wano, Kaido and Big Mom will both be deposed

In turn, their replacements will be Luffy and Edward Weevil, with the Heart Pirates, Kid Pirates, and Firetank Pirates all joining the Grand Strawhat Fleet.

Alternate guess: Charlotte Katakuri and Yamato will take over their parent's respective crews (with Katakuri renaming the "Big Mom Pirates" into the "Charlotte Pirates"), and lead them in allying with the Straw Hats.
- Base guess confirmed; Kaido and Big Mom have both been defeated and are no longer considered Emperors; and Luffy is now one of the Four. However, it's Buggy who's the new Emperor alongside him instead of Weevil.

Ryokugyu has wind-based or plant-based Devil Fruit powers

Mostly just a line of thought based on the fact that all Admirals to date have had an elemental or at least force-of-nature Devil Fruit and all of them have powers whose typical color associations match up with their title.

"Red Dog" Akainu/Sakazuki has fiery Magma which is typically associated with red.
"Blue Pheasant" Aokiji/Kuzan has Ice which is typically associated with blue.
"Yellow Monkey" Kizaru/Borsalino has Light which is typically somewhere in the white/yellow/gold spectrum.
"Wisteria (Purple) Tiger" Fujitora/Issho has Gravity which usually has a purple association.

Given this, it would make sense for "Green Bull" Ryokugyu to have a power that fits that theme, and green is usually associated with either wind or plants in terms of elemental colors. Plants might have a bonus point here in that he's been stated to have been fasting for three years, which might be less absurd if he can somehow photosynthesize.

Confirmed; Ryokugyu does have plant-based powers.

Luffy will defeat Kaido by developing Gear 5.

Which, like Gear 4, will involve inflating his muscles and armoring / infusing himself with Haki... but it'll be Conqueror's Haki this time.

Alternatively, it will be another form of Gear 4 but this time based on Conqueror's Haki called either Lionman or Kingman
Confirmed, Luffy does defeat Kaido after developing Gear 5.

Imu is not Nefertari Lily

Chapter 1084 ends with Imu appearing in front of Cobra as he was asking the Five Stars about his ancestor, the only founding member of the World Government who declined to move to Mariejois, who however disappeared and never returned to Arabasta. The quick conclusion would be that Lily did in fact join the Dragons as their leader and was scrubbed off history to allow her to keep her secrecy as the shadow sovereign of the new world that had been created (the Nefertari dinasty may have passed her story to descendants only orally, escaping the WG's detection for centuries).
What if however it was just a big Red Herring and Imu was a different person, while still hailing from the same time as her (possibly thanks to the Ope-Ope Fruit)? Possibly someone who loved her and still holds a grudge, and has now an interest in Vivi because she looks a lot like her ancestor?

As for Lily, whatever happened to her that caused her to never return to Arabasta, she may have still left a mark on history, somewhere else.
Amazon Lily.

Well, Imu is not Nefertari Lili, so that part is confirmed... however the reason Lili and the other Nefertari did not become Celestial Dragons is because they're part of the D clan.

One of Sanji's brothers will be a major ally.

To go along with the above WMG of Sanji's father becoming a major villain, maybe one of Sanji's brothers (or other siblings, if he has any) will side with him to take down their father; either for personal reasons or because he/she thinks Mr. Vinsmoke went too far.

Chapter 826 has introduced Yonji, who has the same exact reaction to beautiful women as his older brother Sanji. Unless all male Vinsmokes are that way, he could be a good candidate since he may share Sanji's chivalry towards women.
If I had to bet, it would probably be the second son. The first and Yonji seem to be too evil so far. At the very least, the second son called the first on his bullshit when he said he "couldn't wait to see Sanji", so it's a good sign.
Isn't it going to be his sister? One Piece had used female-villain-turned-good plots several times (ex: Robin, Viola, even Vivi and Nami to minor extent) and she kinda reminded me of how Nojiko acted to Nami.
- After what we've learned in Chapter 840, this is even more likely to be the case.
It isn't looking too likely right now considering how cruel they were to Sanji, giving him a very good reason to hate his family's guts. The possibility of a Heel–Face Turn from one of them still remains, but it's not very high yet.
Aaand chapter 839 brought the chances of this WMG happening to oblivion; between the fact that Sanji's siblings laughed imagining the various ways he'd die after running away when they were kids, Niji's incredibly petty attitude and his beatdown of Cosette which made Sanji hate him even more, there's no way in hell they'll ever be anything more than enemies.
And now all of the brothers are allies! So in a strange way, this ended up being true.
Confirmed for his sister Reiju.

During the Reverie, someone will make an attempt on Cobra's life, and may even be successful

After the timeskip Cobra is seen gravely ill, to the point he is confined to a wheelchair to go and attend the Reverie. All this while he intends to ask the World Government about ancient history, and we all know their attitude about the subject. Those are worrisome flags of a possible death of the character. Bonus points if the Ryugyu royals are framed for it, with basically the same consequences Hody's crazy plans would have caused.

Confirmed (not the Ryugyu framing part, but someone did get framed). Cobra was killed by the Five Elders and Imu who framed Sabo for it after the fact.

There's a traitor among the Ninja-Mink-Pirate Alliance

Inuarashi suspects that a Vivre Card was used by Jack to find Zou. Only the Minks, Raizo, and the Heart Pirates were on Zou when Jack got there. Since we all know Inu "suggesting" that a Vivre Card was used is Oda's way of saying "yeah, Jack definitely had a Vivre Card", the only two possible explanations is that they somehow got somebody's card without them knowing... or there's a traitor on Zou who gave it to them.

Confirmed. The traitor was Kanjuro.

Vivi and Cobra's ancestors were forced to hide the truth about the foundation of the World Government

The Nefertaris were among the 20 founding families of the WG centuries ago but were the only family that decided to not move to Mariejois and become Celestial Dragons. Why? Maybe they were lied by their allies about the Ancient Kingdom, thinking they were eradicating an evil regime, or they realized the extent of their actions and were disgusted by themselves. Either way, they wanted to reveal the truth to the world at large but were threatened with the destruction of Alabasta by the newly formed Dragons, and were probably also forced to destroy any document that could lead to the truth. They, however, had later a part in the creation and posing of the Poneglyphs around the world.

Confirmed

Jinbei will manage to catch up to the crew in the two-week interim.

Two weeks would give him plenty of time to escape Big Mom, recover if he was injured, and meet up with the rest of the Straw Hats on Wano. And although it's a bit of a stretch, maybe he'd also carry a bit of extra news with him, since Wano is isolated from the rest of the world.

Jinbe's bus did come back in Wano, so for all intents and purposes, this is confirmed.

WMG / One Piece Confirmed Two

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