Quote (TupacAshakur @ Jun 1 2014 01:25am)
Sometimes I don't understand why they don't get their sons to help them, or give them the blueprints of the anime so they can finish it off if he ever passes away in any moment. That would have been me ofc.
That's because it's a manga and not a book. He wrote this manga with the ending already planned yes, but the story to get there not so much. The way One Piece is the story can change so much because of the climates on the Grand Line. Maybe as we inch closer to the ending he will let someone know what's up, but as of right now, he himself probably doesn't have the rest of the manga mapped out.