User blog comment:Fintin/Just who is that?!/@comment-3242083-20101218015209

I think it is Fisher Tiger. For sure strange that his character was mentioned in the amazone lili arc...

It is Oda's style to hint at future characters, in that silhouette manner. Every shichibukai was "introduced" like that, for example.

My bet: fisher tiger faked his death. He attacked the world nobles and everyone knows what that means - the government will never let him (and probably his relatives) be. I think that is the reason why Jinbe became shichibukai and not fisher tiger (asuming he never died). With him as a warlord, fishman island is save from the government. I doubt they can let someone in that attacked the nobles - not even as a shichibukai.