All I could think when I saw it is "'Dynasty Warriors: Hyrule', hm? I wonder if we'll be able to play as someone other than Link this time."
Don't get me wrong, Link's arsenal across the series is quite varied and should open up some really cool gameplay varieties for a Dynasty Warriors style brawler, but I'd really like to see Koei's take on some of the other famous warrirors of Hyrule... Zelda and Ganon, obviously, but what about Impa from Ocarina of TIme? or Midna and the Ghost Hero from Twilight Princess (actually, Twilight Princess had a bunch of "famous warriors", any of whom might be fun to play)? or the sword trainers from either Majora's Mask or Wind Waker? would they have a go at making Tingle battle-worthy (in all honesty, I hope not...), or the any of the Goddesses or Great Fairies?
...the point is, Legend of Zelda has a huge cast of characters, many of whom are also great fighters, and Dynasty Warriors' main strength is its variety of characters and perspectives across its campaigns. It'd be a shame to lose either just because Link happens to be particularly awesome.
Come to think of it... there could be a wide variety of Links as well: The Hero of Time, the Hero of Winds, the Hero of Twilight, the Hero of Dreams, the Hero of Seasons and of the Ages... even Shadow Link and Dark Link could make an appearance as something other than a boss fight, though they sort of only exist to test Link and have no real personality of their own... They all would have similar appearances and primary weaponry, but their full arsenals and abilities are widely different.