One Piece, a deserving member of the Big 3 of Shonen anime, has offered fans with wonderful storytelling, great and exciting adventures, fast-paced action, and an interesting double but interlinked power system: Haki & Devil Fruit. Unfortunately, it appears that this Shonen masterpiece is coming to an end, since Oda recently declared that the adventure series is set to begin its final “saga.”
While this information creates mixed emotions among die-hard One Piece fans, it also implies that the anime will eventually reveal the mystery of key occurrences, treasures, characters, and locations. Furthermore, the series will almost certainly expose the show’s main theme: the One Piece treasure. Aside with the perspective of the eponymous treasure, there are other great things fans can’t wait to witness in One Piece’s last saga/arc. Here’s a list of some of One Piece’s most sought-after disclosures.
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The Lost History Of The Void Century

One of the most anticipated aspects of One Piece’s final arc is the history of the Void Century. In the universe of One Piece, the period of a century is forgotten knowledge. Furthermore, the World Government’s obsession with preserving what happened in the century foreshadows the fact that the century is tied to key events in the One Piece series.
Decoding all of the Poneglyphs is the only way to learn about the history of the Void Century. The Roger Pirates found the enigmatic truth, and fans can only wait for the Straw Hats pirates to ultimately reveal the Void Century’s hidden facts.
The Nature of Uranus – The Last Ancient Weapon

The Ancient Weapons, considered “legend” by most unsuspecting One Piece characters, is a mystery that is slowly unravelling in the One Piece series. These Ancient Weapons are linked to Void Century. Furthermore, these ‘Weapons’ are capable of wreaking havoc on a huge scale, which is why the World Government keeps any information about them hidden.
Princess Shirahoshi was revealed to be the mysterious Poseidon in the Fishman Island Arc. Pluton, on the other hand, was speculated to be a gigantic battleship originally built at Water 7. The whereabouts of the warlike structure is unclear; nevertheless, Franky destroyed the ship’s plans so that it could never be built again. Uranus, the final Ancient Weapon, should make an appearance in One Piece’s final chapter, as fans are curious about its nature.
The True Meaning Behind The Initial “D”

The Will of D. is one fact fans hope to discover in the last arc of One Piece. The series has portrayed people with the initial “D” as being extremely popular and sometimes powerful. While having the initial D, notable characters such as Gol D. Roger, Monkey D. Luffy, Monkey D. Dragon, Marshal D. Teach, and Rocks D. Xebec have been crucial to One Piece’s storyline.
This development suggests an undiscovered secret that fans can only hope is revealed before the finale of One Piece. Only Roger and a few others are currently aware of the meaning behind the Will of D, proving that there is significant meaning behind the initial.
The True Power of Shanks

The red-haired pirate played a central role in Luffy becoming a famed name in the One Piece’s world of pirates. Many fans believe Shanks is the strongest Haki user in the series. This assertion is supported by the fact that Shanks Conqueror’s Haki was capable of affecting even the wooden components of Whitebeard’s ship, in addition to knocking strong members of the late pirate’s crew asleep.
Aside from Shanks Conqueror Haki, little little is known about the character’s true abilities. Fans of One Piece can only presume that his abilities will be revealed in the last story.
The Final Battle Of One Piece: Luffy v. Blackbeard?

Luffy, the series’ main protagonist, has been at the core of most of the show’s most epic battles. Based on these factors, it is only reasonable that he will play an important role in the ultimate battle of One Piece. On the other side, Blackbeard, the sole owner of two Devil Fruits, is currently lurking in the shadows. It’s possible that this strong pirate will combat with Luffy before the story ends.
Fans are eager to watch how Gear 5 Luffy performs against Blackbeard with his Yami Yami no mi and Gura Gura no mi Devil Fruits. The battle could be the most exciting One Piece fans have ever witnessed.
The Location of Laugh Tale

Roger said earlier in One Piece that the location of the One Piece treasure is on the island of Laugh Tale. The majority of One Piece has been about getting to the island. Only the Poneglyphs, decoded by Robin, can reveal the location of the secret island.
Many fans speculate about the possible location of this island due to its significance in the series, but no one knows for sure. The location of the island has most likely been prophesied by Eiichiro Oda, yet it remains a mystery. Hopefully, it lives up to the expectations.
Zoro: The World’s Strongest Swordsman?

The Straw Hats pirates’ Vice-Captain has vowed to be the world’s strongest swordsman, surpassing the likes of Mihawk and Shanks in swordsmanship. Zoro’s sword skills and Haki usage evolved in the current Wano Arc of One Piece. At this rate, the green-haired pirate may just be able to realise his ambition.
However, the technique by which this occurs is still shrouded in mystery. Regardless, if it happens, fans can only imagine Zoro’s swordsmanship at that level.
The Nature Of The One Piece Treasure

The One Piece treasure is the series’ biggest mystery. After Gol D. Roger delivered his parting words, the hunt for the eponymous treasure began. A large number of pirates, both powerful and ordinary, are all vying for the One Piece treasure. The Straw Hats, on the other hand, are the pirate crew closest to locating the riches.
When it is discovered, no one knows what shape the One Piece will take save Oda. Still, the treasure will be the talk of the anime series the day it is discovered, as One Piece is one of the greatest mysteries in the anime world.
Luffy As The Pirate King

Monkey D. Luffy, the series’ main protagonist, has many accomplishments, but can he actually become the Pirate King? Gol D. Roger, a great pirate who explored the Grand Line and the New World, found the One Piece, and other frightening mysteries hidden by the World Government, formerly held the title of Pirate King. These accomplishments earned him the title “Pirate King.”
Luffy is on the same path as Roger, and it’s possible that he’ll surpass Roger’s achievements. His link to Joy Boy and the Sun God Nika was revealed in Wano Arc, and these revelations hint at the prospect of Luffy becoming the Pirate King or something higher. There will be no greater way for One Piece to conclude if this occurs.