[Discussion] At the end of One Piece:

[Souji]

What you're proposing would most likely require a time skip.

 

[Jellal Fernandes]

Flamingo will most definitely not be a yonkou in the end...Maybe Sabo if he's still around.

 

[24 12 11 to troll]

What you're proposing would most likely require a time skip.

yep! i doubt a 19 year old could be strong enough for pirate king most admiral level plus characters are above 40