Aonuma about Zelda and it seems that Zelda will have strong Sheikah focus

[Wyrdness]

Wright said:

 

Considering Zelda's magic, the fact that she could use it to swap bodies isn't far-fetched at all. That totally defeats any attempt of Ganondorf finding out where Zelda went. Because fan speculation or not, Sheik and Zelda don't have the same atributes.

Again male attire and a bit of magic can give the impression of different attributes, another incarnation of Zelda swapping bodies doesn't mean this one can, also if you look at Sheik in Smash the voice is androgynous like a woman putting on a deep voice which highlights to me it's more a disguise.