I have a lot to back this up, please give it a chance if you’re interested. https://youtu.be/jm3-G4rH4Zc
Lots of great points and intriguing theories. But also lots of… weird predictions that I really hope are completely wrong, like Gaimon and other irrelevant characters being relevant again.
All I’m going to say is, there is a reason Oda had Luffy invite Gaimon to join the crew.
He also invited Kinemon’s legs.
He said he want 10 in the 1st chapter, and i don’t think Oda wanna mess with that number.
If you watch the video, you will see that this theory is directly tied to the 10 crewmate line. In fact the video starts with that line, and something Oda clarified about that line (Luffy wanted 10 before the Grand Line) initially sparked this theory.