Not gonna lie, I will be pretty disappointed if there's no Link. Like playing a Metroid game without Samus.
I do think the person in the trailer is a girl though. Possibly a Hylian girl raised by the Gerudo? Link's long lost twin sister? Multiple playable characters?
Gonna be a long wait for more info.
Link will be the main hero in the game. Also we are gonna get more info soon.