To me its just fundamentally impossible unless you expect the author to literally rush through remaining promised plot points and islands. Finishing Wano, Luffy won't even have the 4th Road Poneglyph yet.
Yet somehow we are supposed to address:
- The 4th RP location
- Elbaf (possibly combined with the 4th RP)
- Reaching the end of GL (Lodestar)
- Sailing to Laugh Tale, finding out everything (One Piece, Void Century, Will of D. Ancient Weapons)
- Battling a plethora of antagonists still remaining (2 Yonko, the WG, Marines, CP-0, SSG) w/ a plethora of allies (Revolutionaries, Supernova, SHF, allied Kingdoms, etc)
- Including a gargantuan set of remaining plotlines together for characters that don't even fall into the above categories.
We are on year 3 of Wano and it only focuses on 2 Yonko, after building up to those 2 Yonko for 8 years. All I'm saying is people need to simply do the math, unless we EXPECT One Piece to end with virtually no good resolution of its plot. We still have at least another year of Wano too lol.