I apologize in advance if I made grammar and/or spelling mistakes, English is not my first language. 
The lore of One Piece knows no bounds, but at some point even this amazing adventure has to reach its conclusion. In 2020 Eiichiro Oda revealed that the series would end in ~5 years, so according to him, we'll see the ending in 2025. Is it true though?
I don't see the Wano arc (which already has more than 100 chapters) ending this year, plus we get ~35 chapters a year, so seeing the ending in 4 years from now seems very unlikely to me, and we'll see the ending not before 2030.
Some questions still unsolved:
We still have to actually see very important characters like Ryokugyu, Im and Vegapunk.
How powerful Dragon, Kong (likely we won't see him in action, but still would be nice a little bit of background), the Gorosei, CP-0, the Red Hair Pirates and the Blackbeard Pirates are.
The will of the D, Joyboy the Void Century, why the Tenryuubito have so much political power even if they are as weak as a common human.
The One Piece, what are Pluton (it's a ship, alright, but what makes it so dreaded?) and Uranus.
All-Blue, Shyarly's prediction, Noah.
The story of the Rocks pirates, also whatever happened to Shiki.
What Teach said he's after (chapter 957 I think).
The Shichibukai and the government's new weapon.
What's up with Weevil (if I'm not wrong, Oda's editor claimed he's going to have an important role in the story).
The Devil Fruits, what they actually are and how they work.
Levely, what happened to Cobra, Vivi and Sabo.
Lodestar, will our heroes ever go there?
I know, I made a melting pot, or how we say in my country, a "minestrone", but as you can see there is so much information yet to be revealed and I probably forgot some stuff, I see it unlikely that it will all get compressed in less than 250 hundred chapters, considering also that we will have the Elbaf arc (well, at least everybody thinks so) and the final war will take lots of chapters (according to Oda it will dwarf the Marineford arc).
If I'm wrong on something please be kind, I'm just wasting time before going to sleep.

The lore of One Piece knows no bounds, but at some point even this amazing adventure has to reach its conclusion. In 2020 Eiichiro Oda revealed that the series would end in ~5 years, so according to him, we'll see the ending in 2025. Is it true though?
I don't see the Wano arc (which already has more than 100 chapters) ending this year, plus we get ~35 chapters a year, so seeing the ending in 4 years from now seems very unlikely to me, and we'll see the ending not before 2030.
Some questions still unsolved:
We still have to actually see very important characters like Ryokugyu, Im and Vegapunk.
How powerful Dragon, Kong (likely we won't see him in action, but still would be nice a little bit of background), the Gorosei, CP-0, the Red Hair Pirates and the Blackbeard Pirates are.
The will of the D, Joyboy the Void Century, why the Tenryuubito have so much political power even if they are as weak as a common human.
The One Piece, what are Pluton (it's a ship, alright, but what makes it so dreaded?) and Uranus.
All-Blue, Shyarly's prediction, Noah.
The story of the Rocks pirates, also whatever happened to Shiki.
What Teach said he's after (chapter 957 I think).
The Shichibukai and the government's new weapon.
What's up with Weevil (if I'm not wrong, Oda's editor claimed he's going to have an important role in the story).
The Devil Fruits, what they actually are and how they work.
Levely, what happened to Cobra, Vivi and Sabo.
Lodestar, will our heroes ever go there?
I know, I made a melting pot, or how we say in my country, a "minestrone", but as you can see there is so much information yet to be revealed and I probably forgot some stuff, I see it unlikely that it will all get compressed in less than 250 hundred chapters, considering also that we will have the Elbaf arc (well, at least everybody thinks so) and the final war will take lots of chapters (according to Oda it will dwarf the Marineford arc).
If I'm wrong on something please be kind, I'm just wasting time before going to sleep.

