Impel Down
· Kaido and Shanks’ encounter happened during this arc
· Shiryu’s past and motivation
· Level 6 inmates’ motivation for joining Blackbeard
· Devil Fruit Awakening (brought up in Dressrosa, Whole Cake Island and Wano)
· How was Impel Down built
Marineford
· Akainu – history and motivations
· The Huge War that will one day take over the World after the One Piece is found
· Blackbeard’s ability to steal Devil Fruits and use two (or more) at the same time + strange body
· Shanks’ connection to the World Government, which enabled him to stop the War (brought up again during the Levely; hinted at in One Piece RED)
Post War Arc
· Tequila Wolf – purpose and destination
· Zoro’s training with Mihawk + his eye
Return to Sabaody
· Caribou’s role – knowing about the Ancient Weapons location (Poseidon and Pluton)
· Roger’s past and importance of the Straw Hat
Fishman Island
· Uranus – what and where it is
· The Eve Tree
· Importance of Noah
· Madam Shirley’s powers
· Luffy destroying Fishman Island one day
· Who is Joy Boy + his role during the Void Century (partly resolved in Wano)
· Joy Boy’s promise to the Mermaid Princess
· The Voice of All Things
· Jimbei improving the relations between humans and Fishmen + Fishmen moving to the surface
Punk Hazard
· Vegapunk experiments to create Dragons and Artificial Devil Fruits
· Kaido’s history on Punk Hazard (partly resolved in Wano)
· World Government’s Gigantism experiments (Beast Pirates’ Numbers originate from these experiments)
· Why Momonosuke’s Artificial Devil Fruit is considered a failure
· Origins of SAD
· Caesar Clown’s bomb deals
· Kidd’s intention of defeating Shanks
· Devil Fruit mechanics
· Kuzan (Aokiji)’s current status + goals + relation with Blackbeard (brought up in Dressrosa)
Dressrosa
· Tontatta tribe’s origin and role during the Void Century
· Luffy and Law destroying Doflamingo’s weapons trade, thus greatly affecting the Underworld
· Donquixote Family’s role during the Void Century
· Ryokugyu – everything about him (partialy resolved in Wano)
· Fujitora – past, motivations for joining the WG + prohibition from entering marine bases and being forced to hunt the Straw Hats
· CP0 – origins, identities, underground deals (partly resolved in Whole Cake Island and Wano)
· Why Kaido wants to kill himself
· Op Op no Mi’s Immortality Surgery
· The National Treasure of Mariejois
· D.s ae the “natural enemies of God” + Law finding out what it means
· Grand Fleet causing a great incident in the future (hinted at during Wano)
