From what little Oda has said on the subject, it seems like he's planning on ending the story with the reveal about what the One Piece Treasure is. I think having a *little* more after that is unavoidable. But, we probably won't get a arc about a fight against the World Government AFTER we go to Laugh Tale. The Final War most likely happens BEFORE we reach Laugh Tale. (If we haven't basically been in the middle of the Final War for this entire Final Saga, already.)
I imagine it'll be one, last, big push by the World Government to keep everyone away from the island. The Final Battle (or one of the final battles) being the World Government trying to keep anyone from claiming the Pirate King title. Then they fail. We find out what the One Piece Treasure is...and then Luffy ends up doing something that changes the World. Then we get the epilogue, and see Luffy hailed as the Pirate King (...if Buggy doesn't get the title and steal Luffy's glory, we'll see.)
For context:
"I've always pictured what the final chapter of ‘ONE PIECE’ would be like, though from time to time, the situation surrounding it changes. It will still be over whenever the One Piece is found in the series, haha. Anyway, this next arc is the final one. "
-Over 100 Miracle Talk Interview.
https://docs.google.com/document/d/...Dh-4Xe0riNQZOvhOoDa2b2_euttfOzz6PMAe76MHg/pub
reddit.com/r/OnePiece/comments/w6cxg8/oda_just_confirmed_story_ends_when_one_piece_is/
(Mind you that's also the same interview that said Oda was aiming to end One Piece in 3 years...back in 2022. But...let's just ignore that for now.)
Now, it's possible that Oda's changed his mind, in the years between then and now. But, from what little we know, that seems to be the plan.
As for the World not being against Luffy after he does whatever he needs to do in the finale...I wouldn't be too sure. If only because that'd be more fun for Luffy. Remember, Luffy doesn't want to be a hero. And he probably doesn't want to be worshiped as a god, either. "Pirates" of some kind will probably still exist. Because, otherwise, that would make Luffy VERY sad.
So, the Strawhats remaining "on the run", even though everyone's rooting for them secretly, would kind of be fitting for him. Plus, even though Luffy will most likely save the World, most Pirates are still probably going to "outlaws". Most pirates are still thieves that need to be caught. Even if we move on to..."Space Pirates" or something.
Plus...if Buggy DOES become the new "King of the World" (even though, he probably won't get Imu's power, so it'll be in title only), that WOULD give Oda a good excuse to keep the Strawhats together and still be treated like outlaws. Imagine Buggy being so sore about not being the King of the Pirates, as he sulks in his throne room. "Stupid, dead-end job."
More on all this over here:
https://worstgen.alwaysdata.net/for...rc-be-the-final-war.74101/page-2#post-6397013
So, we'll see. I have a feeling it'll go something along those lines. But, I could be wrong. Oda may have something completely different in mind. Time will tell.
But, as far as bounty increases go, I feel like we really only have ONE left, before the finale, probably? And chances are, Luffy will still be *slightly* under Roger's old bounty. If only because Oda likes his characters to be "underdogs". Luffy probably can't surpass Roger until he reaches Laugh Tale. So, I feel like the only time we'd get to see a bounty for Luffy that surpasses Roger's is in the epilogue. But, we'll see.