I'm not so sure about that idea. I think it would be a bit cliche...
...Not that the Zelda franchise is all that "original" (still incredibly fun and immersive, just not that original (Still uses traditional fantasy elements - which do sell, like using bow and arrows, lack of technology, different races/race relations, using forms of Magic, 'other worlds' etc... Oh, and don't forget angry, small green monsters that are part of a vast army, wanting to kill everyone else).
Still, even now, the "traditional fantasy" games I like are Zelda ones. Now, non-traditional fantasy games, Like Final Fantasy VII, VIII, X etc. I like.
Ye, but back on topic, haven't we already seen this sort of thing with "Dark Link"?