>>57988354The interesting thing about Pokemon and inertia is that so many things were considered unchangeable just because of weird old things, and we always thought it was because of issues with keeping the games compatible. But all that went out the window with the Dex cut so now when they don't change stuff it's weirder. Moves and evolution methods can change on a dime nowadays because they add and remove mechanics freely. One of the best changes was changing a few evos to Stone evos from stupid gimmick ones, but they don't do that consistently.
>>57988366the first major design shift is Gen 3, which made the model for the modern Pokemon generation, with everything being sort of encapsulated into single generation rather than growing from the last one. It made gens into something that was meant to be consumed and replaced, rather than a world that evolved. I'm not saying that to insult Gen 3; that's just the way it is. Then the second shift was Gen 5, which was the first move towards making Pokemon disposable (a whole new dex.) It also made the move towards more story driven, cutscene heavy games. Again, that's not to disparage Gen 5, it's just how Gen 5 changed the series. And then Gen 7 gives us the dex cut and the permanent severing of the idea of a pure continuity between games. Pokemon can be removed and retired at will and rosters are limited. Nothing is certain to come back gen to gen.