User blog comment:Kraykan/10nth member possibilites/@comment-3119203-20101122024029

I agree with Ichigostop, but that is only if they will get a new member. While it is true that Luffy promised to get 10 members (besides himself), he didnt really follow this, as he left to the grand line with five. Anyway, they spent two years getting stronger for the sake of each other, and a new member wouldnt fit in with the kind of friendship they have. They dont really need a new member either