At the end of the series Jinbe will be on of the 3 strongest Commanders of the Pirate King.
Since the 3-4 strongest Yonko Commanders have a known bounty of about 800,000,000-1,320,000,000 Berries, his final bounty will be about 1,200,000,000 Berries.
As the third strongest member of the Pirate King’s crew, Sanji will be one of the strongest characters in the the world at the end of the series. He probably will be the fastest fighter of the world and his final bounty will be about 1,500,000,000 Berries.
At the end of the series Zoro will be the Greatest Swordsman in the World and the right hand man of the Pirate King. In terms of power he will probably be Yonko level and his final bounty will be about 2,000,000,000 Berries.
Currently, Luffy has gained a bounty of 1,500,000,000 Berries and has unofficially been titled the “Fifth Emperor of the Sea”.
At the end of the series Luffy will take down Blackbeard and will become the Pirate King. For this reason, Luffy’s bounty will become the highest bounty ever seen in the series.
Since Gol D. Roger had a bounty of 5,564,800,000 Berries, Luffy’s final bounty will reach 5,600,000,000 (since 56 -> go-mu -> gomu = rubber) Berries.
Only after becoming the Pirate King, Luffy will take down the World Government.