Impossible for it to be over in 5 years no matter what anyone says. JUMP will take as much money as they can
Yeah, we have the rest of Wano, which will easily take all of 2020 imo. Though I guess it depends on how fast Oda goes through the war itself. Regardless I'm expecting Wano to finish either early or mid 2021. We need an Elbaf arc at some point, since that's the one other island that's had a prominent place in this story. We also have finding/getting to Raftel, and Final War shit. Considering all of this and Oda's break schedule, there's no way in hell this series is ending in 5 years.
 
WBP were able to match Roger Pirates, and WB was called WSM (because of Pirate crew) during Roger Era
WBP were not even close to Roger Pirates... even with Oden.

Roger Pirates formed over 52 years ago while WBP only formed 33 years ago, and the 3 future YCs were only boys. Even is Roger = WB and Rayleigh = Oden, Gaban and the others would crush the WBP. And Oden was also a Roger Pirate so including him in this is questionable
 
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