I would like to see their take on a Zelda game. But I would really like it if they had free reign on what they could do. I love Zelda, but would be very interested to see it from a different vision. We all know Retro has been able to do this in the past. With the power of the Wii U it would be nice to see what a semi-non-linear open world Zelda could look like.
Since the first 2 NES games Zelda has become more and more linear, I would like to see how it could be if it went in more of the direction of Elder Scrolls & Fallout 3. Not in terms of mood, but in freedom to tackle the different dungeons at different times, only being held back by your skills and current arsenal. Though I still would like the world to feel whimsical and colorful like WW or SWS.
As for Voice acting, it depends on how good of a voice team they can find. Then again, a lot of Zelda characters would be very annoying to listen to, I couldn't even imagine what type of voices Beadle or Tingle would have. I would keep Link as a silent protagonist either way.