What would be the biggest troll move Oda could pull?

So we all know how Oda likes to troll the fans, and it got me thinking.... What would be the absolute biggest troll move Oda could pull? Personally, I believe the biggest troll move Oda could pull, would to have the last panel of One Piece resemble something like this...


I couldn't even imagine the massive debate that would ensue

So what do you guys think could be a possible massive troll move by Oda?