It is privately assumed that Luffy and Nami are siblings, or the grandson and granddaughter of Whitebeard. It is privately assumed that Blackbeard was discovered when he was preparing to kill Sage. Thatch is not dead, Blackbeard escaped, and Ace was not caught. Sabo has restored his memory. The three brothers recognized each other. Ace and Sabo happened to be on Luffy's boat. A screen appeared in the sky. The person in the private screen was chatting about Luffy having become the Pirate King. It was privately assumed that Zoro was with Nami in the end.
Purpose: To change the tragedy