I think BotW is doing what Nintendo should have done years ago, picking up the great aspects of WW and expanding on them.
They seemed to seen not long after Twilight Princess that the realistic fantasy art style isn't built to last and they will quickly be outshone by other games in the fantasy genre, so the cartoon/anime soft colored art style works in the franchise's favor.
The other stuff and becoming more open world is them finally putting to rest the ALttP/OoT ghost of game design after TP and SS had people questioning if the franchise had plateaud. Even WW with its large and explorable over world still was beholden to the familiar dungeon set up so it wasn't that open world as BotW is expected to be which harkens to the very first Zelda.







