That Answer is easy, but its not one thing this is two thing.
The Answer of Ruffy gave the Crew, after Wano Arc, what is his Dream and anyone was laughing.
And the second thing the Review or Flashback of the true History, when all pieces gathered together. This History Flashback might be more then 5 Chapters long. From the Importance to the whole Storyline.
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1. The identification of Imu
2. The meaning of D.
3. I wanna see a Robin and Saul reunion.
4. Luffy and Shanks reunion
5. Vivi and SH reunion
6. Blackbeard's lineage, especially after the recent chapter.
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Those are also really good, Imu, BB Lineage, reunion Arc is comeing maybe already this Year if we get Lucky.
Shanks Luffy, Luffy-Boogie Woogie, Lysop and Yasoop, Lysop and Giants, Robin and Saul (BIG), Robin and the Libary,