Possible but since there are only three Calamities, that it's them who have always been described as Kaido's seconds in the crew and strongest fighters and that Ace has never been mentionned or hinted before, and knowing how Oda likes to subvert our expectations I have a strange feeling about this.
I wouldn't be surprised if he turns out to be a rebel or a slacker who has the potential to become as strong as his father but who doesn't exploit it or who refuses to take part in the crew operations out of rebellion or lazyness.
I wouldn't be surprised if he turns out to be a rebel or a slacker who has the potential to become as strong as his father but who doesn't exploit it or who refuses to take part in the crew operations out of rebellion or lazyness.