The three different flavors of Hyrule Warriors, exclusive to Japan  

• The standard edition will come with a download code for either a courage, bravery or valour costume set, which has three different outfits.
• The Premium Box set includes the courage-themed set mentioned above in addition to a download code for the wisdom set plus three more outfits.
• The Treasure Box set will have both the sets and two unique “Power” costumes — exclusive to Amazon.jp and Koei Tecmo’s Gamecity website.

Link is part of the courage set and Zelda is part of the wisdom set. We can also assume that the costume sets will be available as DLC on the eShop. But the bigger question remains - will these stuff be out on the Western market too? I’ll get back to you ASAP.