If you believe this you deserve to be trolled.
For the avoidance of doubt, not once has there ever been a “leak” that gives away huge plot points months (years?) in advance. It doesn’t happen. Spoilers come out for the next chapter, and that’s it. Any spoiler or leak that says ”this isn’t for next chapter, it’s for some time in the future” 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. It’s far too specific