Make the world like you never know what's around the next corner, like in the trailer where links just chilling, then off in the distance some beast starts running after him and you have to think on your feet.
Make the world evolve, like the animals react to the seasons, time of day and weather, other animals and you'll have to deal with those consequences.
There obviously has to be moments to let you catch your breath after fighting some intense enemy, so well staged pacing of those moments.
Plenty of puzzles, cleverly executed.
Huge scope of the world, with plenty of density to activities, well melded together. I hope it's not just a big open world for the sake of being a huge open world, but because there is plenty of things to do.
Destruction of trees blocking some routes, avalanches of snow triggered by too much noise in certain areas.
I'd love there to be that huge spider in a castle like in the 1st trailer we saw of the Wii U Zelda.
Massive dungeons like were promised.
Overall just make it a beast of a game, I think Nintendo's devs can deliver all this, if they do I'll be ecstatic.
