Man i hope they "Mario Galaxy" this game. Do what it did to the Mario series with that game, but to Zelda this time. So, make it so it feels simultaneously fresh and nostalgic; evoking both wonder at the completely new and memories of the feeling you had playing older zelda games for the first time. Make it so that it bridges together design approaches from multiple schools in the series, yet combines them with enough of the new in its own superbly realized theme and approach, that it it's own, clear, unique, identifiable whole. Then add massive amounts of imagination and creative game design elements, while making it still feel like Zelda, polish it to perfection, add wonderful presentation, and bingo.
They might not quite deliver on that, but i'm looking forward to seeing what they do make, and of course the reactions and meltdowns that will inevitably follow the showing. I'm personally not too worried, the series is so consistently excellent, that whatever they do with this next console entry, i'm sure it will be a real pleasure to play.