It does look really nice, though I like this one much more:

Skyward Sword (crappy game) vibes scare me a little. But at the same time something tells me that there is going to be underground exploration, which is awesome. Anyway, hype is back.

This trailer, with less than 30 seconds of gameplay, has over 3.7 million views in less than 36 hours.
The hype is real.

Agreed, the new one is really good but I think there are still several I like more:

And the Twilight Princess HD one you posted.

The Majora's Mask PAL boxart is still also one of my favorites. The purple versus dark green and simplicity of the whole, yet the detail of the background is very stylish.

I don't really like the green tone.

I like the Skyward Sword HD box art more than the original. The Wind Waker HD box art looks pretty but feels a bit to overstuffed.
Majora's Mask 3D's box art is definitely one of the best ones.

When I look at the amazing Box Art I am almost convinced that underground exploration is a given. Link is looking down from the skies and no trailer so far has shown Link doing anything ("gameplay-wise") relevant on those Floating Islands, he is almost always jumping off them going downwards to where the action is taking place. The Islands look like are going to play a similar role that the towers did in the first game.

While I expect some underground section, the boxart is showing a different angle on the map. It seems like the world will also be expended outside op BoTW’s map. 

Maybe some of the floating islands were originally part of the ravine that made the northern and western borders ?

Although I'm hyped, this is like the 3rd teaser trailer. They're teasing mechanics but it all looks a bit too abstract. At this point I just want to see
1. Distinct areas, simply being in the sky is not distinct.
2. New enemies
3, Mechanics in slightly more context

This left me feeling a bit cold, but I love the title.