Oda said One pice will be over in 5 yeara
Well in this point I just think Oda is hacked
Everything he said just a markerting
THIS
1-Saga ends
2-Oda announce one piece will end in 5 years
3- New saga start
4- People return following one piece cause they think is about to end in 5 years
5-The new saga is exactly like the previous ones , the fandom get bored and start leaving
6-Saga end with no real changes in the plot, remaining fandom is disappointed and start leaving with the rest
Repeat from number 2
Essentially, they're try to get the best profit out of the new saga by saying it willl end in 5 years
In reality one piece wil never end ( just like dragon ball ) ,cause there's too much money behind it