There are 12 animals in the Zodiac, and Oda seems to want to have a Marine representative for all of them. Remove Aokiji, who is no longer serving the Marines, and you have 11 Zodiac Marines. There will be 11 SHs if Yamato joins, so Oda seems to be setting up SHs vs top 11 Marines (Garp and Sengoku excluded). Who will Kurouma fight?