Replayability by the standars of the OP is the highest. The game can be finished in a couple of hours (or in the case of speenrunners - so far - a single hour). Also there are multiple ways to finish the game. Considering that, I'm on my second playthrough and ready with at least 3 new ways to play it.
You cannot say the same about the other 3D Zeldas or 2D Zelda.
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Prediction: No Zelda HD for Wii U, quietly moved to the succesor
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