As for Zelda being more like Skyrim, just no. You may love a game, but that isn't enough reason to have It's elements on Zelda. Most of the times, you can't just have 1 element and make It look natural, you'll need a lot more and before you notice, Zelda isn't the unique series you used to like. People tend to complain about how games aren't as good as they used to be, thats partially true. One game starts copying elements of a more successful game and every new gen they get even more similar. Heck, you can easily compare recent Resident Evil titles to BF or CoD while older titles were completely different, they could as well just give the series a new name and end It. I like Nintendo for It's conservative attitude, let's not ruin that. Fix Zelda flaws by an specific solution to keep the game unique, not by copying another games elements.
High definition would change that. I guess it comes down to personal opinion?
It doesn't come down to personal opinion, Twilight Princess IS VERY FAR FROM REALISTIC, High Definition wouldn't change that. Belive It or not, It's VERY cartoonish, just look at those yetis. Zelda will never get to see true realistic graphics. Nintendo just isn't ******** enough to sacrifice the gameplay and the series current design for realistric graphics, It's just not worth It. Most people who want Uncharted 3 kind of realistic graphics to the series have no idea of the impact that would cause.