Eiichiro Oda states One Piece will end this year

They never find it, they just keep getting lost.
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On to the real matter:
Time and time again, you surprise me. Humanity has certainly surpassed my expectations, though, this does not completely erase my doubts. I tested you, opened doors, revealed memories and destroyed worlds just to unveil the fact that there were paths to take.
But I could not choose. You could have turned away and become another entity incapable of progress, but you showed more ability than those you think as Gods.
You chose.
Perhaps it was the close attention I paid your race that allowed me to make a single decision before any of you were born. I see now that it was not the collective will that caused my action, but my volition. This is more important than you can truly realize.
But you must try to understand the meaning behind this, and why it affects your lives. It's time you saw the truth.
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In this season members go back to the pivotal act that began the process of all their previous lives. The actions you take during this time will reveal the reasons behind the intervention of angels and demons, as well as your very existences. All the clues from previous seasons come together, all the choices culminate towards single answers. Whether you choose to accept these as truths is up to you.
-The outcome of the story alters with choices taken by members. The most pivotal decisions occur when you either accept something as truth, or deny its very existence and attempt to alter reality by force.