User blog comment:AYET/Minute Details Planning by Oda/@comment-8823907-20130629195808

I thin we can all agree on the fact that oda already had some ideas and main points in his head sort of like a skeleton on which he started building.

You asked questions like before even introduced did he already know the SH power ups. I Believe yes. I have been reading some interviews with Oda and as he mentioned several times he already knows the ending. He already knows the conflict that will resolve in the final big battle that is supposed to make mrineford look like a warm up. I believe he is actualy working backwards. He already had an enrmous part of the story. The SH probably already existed in their post time skip form in his head even before Luffy spoke his first line in one piece.

Definately the small details are filled in later on. If i am correct than think about this for a moment. This is kind of awsome. Coby. He is being slowly shaped into a great navy officer. I am not going to speculate on the fact how powerfull will he be or how high he will be promoted. But i think that we can all agree that he is becoming an important part of the story and with more time passing he becomes even more dominent as an important character. his means he will play a big roll in the final chapter. So revind back a little bit to the first episode. That little chubby neredy kid from episode one is gonna be one of the strongest people in one piece at the end. The way Oda is shaping him i believe he already knew this drawing the first chapter.

To the question of the warlords again i believe he not only had the idea of creating them. He probably already knew the ones that are currently schibukai or maybe even future schibukai.