Kong like Sengoku the Budha propably has a giant Ape fruit except for Oda surprising us again. I believe Luffy will not become Pirate King...All his techniques (mostly Gear Second) drain his life...especially before timeskip.Also in the Luffy vs BB fight I see shanks sacrifising himself...Before or during the fight. If Luffy dies then it would happen after he wins the final battle IMO and Buggy will become Pirate King.
The fuck is the point of the manga then
If Buggy becomes Pirate King it would be the biggest troll in the history of all literature. The hero dying so that a tertiary supporting character can achieve greatness is the most patently ridiculous sentiment I have ever seen.
Do yourself a favour and read the manga [too].
The healing technique was called "Emporio: Healing Hormones", so yes, it was the hormone treatment that took ten years of Luffy's life.
I see the point of living the dream in form of "The journey is the reward.", but why would Oda do that? Do you expect the BB fight to be before or after the WG is liberated?
Personally I expect the BB fight to be before the WG is liberated. Blackbeard is a rival, it would make the most sense if he is standing in Luffy's way at the most critical moment, before Luffy can reach Raftel. Fighting the World Government makes most sense after Raftel. Standing up to the powers that be and overturning tyranny would seem more meaningful after becoming Pirate King. After Raftel represents Luffy using his new found power to stand up to tyrants in the name of the oppressed, using his new found power to carve out a better world. If he defeats the Government before Raftel they represent nothing more than another obstacle on the path to adulthood.
More importantly, fighting the World Government after Raftel would be far more dramatic. The World Government going to war against the Pirate King would be far more dramatic than the World Government going to war against the prospective Pirate King. Imagine Luffy being proclaimed Pirate King, greatest hero of his age, reveals the true history to the public, followed by the World Government mobilizing for one last stand as Luffy gathers friends and allies from Albasta to Revolutionary Army, mobilizes the ancient weapons, defeats the World Government, and the manga ending with Luffy restoring the glory of the ancient kingdom, opening a new golden age. Defeating The World Government before Blackbeard eliminates all of that. Defeating the World Government before Raftel eliminates much of the drama too. Rather than confront them in all his glory as Pirate King, Luffy would just be another Pirate who became a nuisance, and needed to be snuffed out before things got any further.