User blog comment:Kaido King of the Beasts/Why Just Have Two?/@comment-24.235.56.170-20150425232636

He didn't kill Bonney, so he doesn't have her power. It's as simple as that. No DF power can exist in two people at the same time, plus BB seems to need to kill people to steal their ability, so if Bonney's still alive, then that's where her powers are staying.

As for whether or not he'll get more, I feel like he must have some limitations (like just one of each type or something) so maybe he'll get a zoan ability, though I can't imagine him as a zoan.