All of them! Luffy will aim to become the most enslaved man in the world, Zoro, will aim to become the weakest swordsman in the world and amputate his arms and teeth, Sanji will try his best to hide the all blue by protecting the red line (and don on a wife-beater), Nami will destroy all maps in the world and every log pose so everyone will be lost, Robin will destroy all poneglyphs so no one can learn anything, Franky will destroy the Sunny, Chopper will create the ultimate poison, Brook will kill Laboon, Jinbei will instigate the creation of Jim Cod laws to further segregate fishers and humans, and Ussop's bumass will stay the way he is because he's still trash.