When will One Piece end?

[SSJ2]

We are now ~5 years after Oda said the story would end within 5 years. Given the current direction of the story, how much longer do you think One Piece will go on? I can't see it ending any sooner than 3-4 years with the amount of breaks that Oda takes.

 

[Future Warrior]

Elbaf alone will take 2 years at minimum. After that it depends on the order of events. We could go straight to Laugh Tale after that. I’ll say anywhere from 4-8 years because it is impossible to determine.

 

[Warmmedown]

Seems the SHs visited 9 Grand Line islands before the Red Line (Cactus/Whiskey Peak, Little Garden, Drum, Sandy/Arabasta, Jaya, Long Ring Long Land, Water 7, Enies Lobby, Thriller Bark, Sabaody). Seems they've visited 6 post-Red Line, including Egghead. So another 3 islands? Plus would there be another Marineford type detour?
I guess 4-5 years then. Each arc seems to be a year, plus non-SH events take up time in between (eg Reverie, Blackbeard vs Ace etc).