This chapter definitely confirms my suspicions that Imu has the one piece and Roger just lied about it.
The OP world is based on the idea that there is no king of the world. Even with the CDs and their awful system, the CDs at least promised that there would be no king of the world.
Joyboy wanted to be king. Emeth even laments that he couldn’t make joyboy king. That’s probably why the AK war started. The kingdoms wanted to prevent joyboy from being king of the world.
Luffy wants this to. In chapter 2 if you look at the interaction between Koby and Luffy, Koby says Luffy would need to make the world kneel to him to be PK.
The key to becoming PK is the One Piece. It is essentially built up as the One Ring of the story. Whoever has it controls the world.
But we already know that there is a person who controls the world. That being Imu. Hence he must have the one piece.
I think the story ends with Luffy either destroying the one piece or giving it to Koby in a fake fight(like what happened in East blue). Koby is the honest marine hero. Once Imu is overthrown, he would tbh be the most worthy of the One Piece.
Luffy fake fights Koby. Koby gets a fake victory. Luffy gives Koby the One Piece. With the CDs gone, the WG becomes a true democratic republic. With the OP, Koby is able to create a world with true Justice.
Luffy goes down in history as an evil villain who wanted to keep the OP to himself to be King of the world, before being defeated by the valiant Koby.
Which is basically what happened to Roger. He got a fake loss to Garp and was seen as the villain.