@Halfmetal-lich:
Looking at the last chapter, it seems that Luffy will go under some sort of training thing to learn haki, so this might be the reason why Oda made the story return to Amazon Lily.
However (and this is the crackpot theory of the day) maybe this will give Hancock her position in the crew (The Haki teacher) or Jinbei, though he seems to be a possible helmsmen.
Or we could get a training montage and Luffy leaves without ever looking back.
first how did this flashback hint at him training in Haki? Training sure, but nothing more than general get stronger. now yes considering we are on amazon lily, Haki seems pretty obvious, but the flashback didn't do that. we learned that 5 chapters ago when Hanocck found luffy
Second do we know if Jimbei can use Haki at all? but ha positions, lets ignore who joins, perona, hancock, jimbei, random x, it doesn't matter. when they do join a position will be assigned to them by us no matter how rediculous. hell all it would take is for someone to hold say a broom ONCE and everyone would say he is the deck hand and cleans the ship, lol
edit: speaking of which, was the zoro 3 brooms filler or in manga? if in manga why is he our swordsman. Its obvious that we dont' have a swordman, we have a musician and a cleaning man