I'm not really sure what a fetch quest is... Endurance dungeons aren't my favorite, but I know they're inevitable in Zelda games, and I'm not a huge fan of mini-games. Trading sequences have always been really fun to me (for some unknown reason), and races/mazes are really cool. I hope there are...
I agree with everybody who's said they want an expansive, dense overworld(s). I, personally, want millions of side-quests that can take as long or longer to complete than the main quest itself. Side-quests that actually get you things. Like, you don't have to have the Zora armor or mask or...
I personally love WW. It may have one of the worst main quests ever invented, and yeah the islands are extremely small (and boring), and sure some of the dungeons suck. Really bad. But WW is the only game where I can be in a dungeon that sucks and laugh about it (instead of screaming at the tv...