When you write a story like Oda, meaning when you write a story like an architect, you do it through an outline. This outline is a skeleton of the story that will allow you to know how your story will developp from beginning to end. Writers like Oda who work like screenwriters have all the big elements of the story already planned out before starting the first lines. Meaning that they will also know exactly how they will end it. Not only in the very last moments, but also how the characters will evolve, transform, what will be the big messages, the forces in presence, the philosophical conflict etc.
My point is that each time we are close to those big moments, we are also close to the way Oda viewed his story at the beginning.
For example, Wano, felt very different from the new world mainly because it was a big arc Oda had in mind very early on. Just like we can say that Gear 5 or Roger's laugh were most probably very early foundamental gears of the outline of the story. Those moments are so impactfull because they are also breathing moments, they are moment where Oda takes times to describe or show the revelation. And most of the time, less with Gear 5 but more with Roger's laugh, Oda create big beautiful and clean double pages. Those double pages are something that Oda does not use as often as he did at the very beginning of the story.
So I believe that the closer we get to the big ending outline "gears" and big ending revelations of the story, we will have a taste of the very early One Piece with big beautiful Cover Pages. Hence why I say that we will have more "breathing moments" toward the end of the manga.
