User blog comment:Videogamep/The Next Straw Hat Craze/@comment-1876594-20140227174959/@comment-2226235-20140228044040

It does seem like this mysterious girl is the most likely person to join (assuming we get a new member in this arc). She does fit all the criteria and I can easily envision a scenario where she joins at the end of the arc. The one issue is how unpredictable Oda can be. I doubt anyone expected Robin to join after Alabasta and most people probably thought Franky would be an antagonist when he was first revealed. We just never know what he's going to do.