http://nintendoeverything.com/fresh-hyrule-warriors-legends-details-cover-wind-waker-content-additions/
Helmaroc King will appear in Hyrule Warriors Legends. The enemy can cause huge gusts of wind from its great wings, and it possess great strength in attacks compared to the usual enemy. Miniblins (Wind Waker) and Big Blins (Spirit Tracks) are also shown in the various Famitsu screenshots.
There will be a number of new areas added for the Wind Waker section of Hyrule Warriors Legends. Famitsu shows Windfall Island, Dragon Roost Island, and Forsaken Fortress in its screenshots.
It’s important to mention that there are plans for new characters to continuously appear. Other than Tetra, King of Hyrule, and Toon Link, there are plans for characters that are still unannounced. Characters from previous works will come as DLC, too.
We also have information about a couple of new elements aside from characters and levels. A new golden ocarina item is being added. This causes a great twister to appear that can take you to various Owl Statues you find throughout the battlefield. It might be an important component in time-based missions.
Wind Waker will be added as a new chapter in Legend Mode with an original story.