If you believe this you deserve to be trolled.
For the avoidance of doubt, not once has there ever been a โleakโ that gives away huge plot points months (years?) in advance. It doesnโt happen. Spoilers come out for the next chapter, and thatโs it. Any spoiler or leak that says โthis isnโt for next chapter, itโs for some time in the futureโ can be safely tossed in the rubbish pile.
Oda does tease future plot points in interviews, particularly at Jump Festa, but this is clearly not one of those teases. Itโs far too specific