Durning the incident in punk hazard, Law took ceassar as a captive to made Doflamingo resign his 标题 as a Shichibukai.
After Doflamingo resigned being a Shichikai Akainu states in the marines meeting the current Shichibukai: Mihawk, Buggy, Hancock, Kuma, law, Doflamingo and some unknown new one. Who do 你 think that is?
My opinion is that Jewerly Bonney is the new Shichibukai since she was captured before the time skip and now seem to be realesed. Also I have a feeling that she is the doughter of big mom but that is just a hunch.