Oda treated us to a ton of teasers in chapter 610, but the one that I noticed is Madam Shirley. I am curious to hear what you guys think her role will be in the arc. Personally, though I have nothing to back it up, I think that Shirley is an extreemly powerful mermaid (if her fortune telling powers are any indication), but more importantly, I think that she is 29 years old. I bring this up because I bet that Shirley will be harboring this secret dream to explore the world above water, and when her fin splits, she will become the next member of the Straw Hat Crew. Please give me your thoughts and opinions on this.