Theory how Luffy will become the Pirate King and how One Piece ends

After defeating two Yonko and this is "Big Mom" ​​and "Kaido" Fillers will begin for Luffy and his team, and the main events will be the battle of "Shanks" and "Blackbeard", which will ultimately lead to a dastardly or honest victory of "Blackbeard" and in this time Luffy will collect "Panneglyphs" and learn about the death of "Shanks" and now the main enemy for Luffy will be "Blackbeard" and in the end there will be a battle for the title of "Pirate King" and the treasure "One Piece", and most likely Luffy will win and he will become the "Pirate King" ...