General & Others The best flashback ever would be the void century final war.

[MagnetoEustassKidd]

Seeing all the characters of the past using the devil fruits of current characters in present day.

Joyboy, giants, robots, fishmen, Kozuki, minks, and lunarians vs the world government

Seeing Joyboy's crew in action

Seeing all the ancient weapons in action.

Void Century Final War Flashback is a must.

 

[Herrera95]

I don't bet on it.

Today Oden's flashback is the best.

I believe Void Century flashback would destroy so many thing in the series. Would do more harm than good. That's because Oda's current writting level it as it's peak but upside down.