User blog comment:Hustleshine/Who's Shichibukai?/@comment-4605926-20120208171229

Ughhh, things start getting weird and illogical in One Piece lately (which I don't like too much). I hope I'm wrong though, perhaps these things are just yet to be explained thoroughly. Anyways, It most definitely CANNOT be Buggy for a couple of reasons:

1. Buggy is too weak to become a Shichibukai...

2. Buggy can't be too much of a threat especially to anyone in the New World.

3. Buggy can only separate himself and not others.

By the looks of it, the most logical option would be Law but I don't think even he is powerful enough to become a Shichibukai. My guess is, we'll be introduced a new Shichibukai pretty soon with some ability that allows this. Then again, it might be Doflamingo because we don't really know as of yet what's the source of his power and even what his power really is or to what extent.