Nintendo has been showing a lot of The Legend of Zelda: Breath of the Wild at this year’s E3, but there is one element that’s noticeably missing from their livestream: the story elements. That is not because there isn’t any story, but because Nintendo didn’t want to spoil it for anybody. They also haven’t shown any towns or NPCs in the demo, but they did confirm that those things will definitely be in the game. But, again, since Nintendo doesn’t want to spoil anything pertaining to characters who aren’t Link, they do not appear in the E3 livestream or show floor demo.
Source: Nintendo E3 2016 Showcase