I still remain in the Hancock isn't joining group, and I'll tell you why, because meeting Luffy hasn't changed her, and Oda told us this with the Baby seal dog scene where she kicked them, now i of Oda could have done that just to make Hancock be holding up appearances in front of the marines, but i think that was over kill..... and I agree I don't think she's one to fit in, I mean if she became of SH then Sanji would be stone 24/7
You know what I think Kuma has sent the SH's to places not which they wanted to go (with perhaps the exception of Zoro just because he actually asked him) but to places where they could benefit both themselves and others the most..... for example...Sanji: Get over his weakness for woman.... Chopper: learn to PROPERLY stand up for himself.... Robin: Use her DF to build the bridge and free all the slaves....don't relaly have theories on the other, but maybe give Usopp a DF? or at least a supply of them to use on some weaponry or something.....Like I said i think Zoro has been sent to a place that he wanted, which I'm sure is just
"I place where I can get stronger"
And i dunno a secluded castle might be perfect for that? Oh I dunno...
Damn you Oda become just a fraction more predictable LOL