>>49247113>same locationsPlus a bunch more compared to every other third version
>same charactersPlus a bunch more compared to every other third version
>same musicPlus a bunch more compared to ever other third version
>same PokemonDo you mean the overall pool without transfering from another generation? B2W2 added a lot more. Are you meaning to the total? Unless you count forms (you shouldn't) then it didn't, unlike USUM which is the only "third version" to do it.
I guess we'll see how people react to "using the exact same game map but remixed" thing when the new Zelda game releases, but the fact of the matter is that structurally it's entirely different. Some Extra Modes in Kirby games do a similar thing, although it's less about the map design and more about the playable character, at least in the more recent titles.