My dream Crocodad reveal would be a Seraphim being ordered to kill Luffy. Gear 5 has taken everything out of Luffy, he can’t move and no one’s close enough to help.
The Seraphim turns around and it’s S-Croc. The irony of the first Warlords Luffy ever foaght being the Seraphim that ends him is clear. It raises its arm to cut him down but then stops, blinks, then turns on the troops surrounding Luffy and begins to cut down marines left and right.
The crew gets to Luffy, quickly gathering him up as they all try to rationalize why the hell the S-Croc would defend Luffy. They may or may not ever know that Vegapunk made sure all the Warlords Seraphim’s couldn’t and wouldn’t attack their DNA recognized family. Especially parents killing children.