I wonder if Coby is going to be banished from the marines, now... or maybe he'll leave the marines to pursue his own ideals of "justice."

Despite how easily Shanks strikes fear in all the marines, they're still actively fighting Blackbeard on the other side, whom was supposedly stronger than Shanks even before either of the two devils fruit he now possesses. Then again, I'd like to believe Shanks received those scars as an apprentice on Gold Rogers' ship, rather than as a yonkou.

Hell, maybe Blackbeard will become a yonkou himself after the time skip, since yonkou does imply "4 Emperors," and Whitebeard's death just freed up a slot.