There are several upcoming DLC packs for Hyrule Warriors (the first one is free, the rest is paid content) planned, and during this weekend Zelda producer Eiji Aonuma revealed that Links trusty steed Epona will be in the first round of premium DLC as a rather potent weapon. This is the first time Epona can be used as a true warhorse and Aonuma himself described it on Miiverse as follows:
"I already had a chance to try out Epona in the game. By riding Epona, I was able to blow heards of enemies away and gallop swiftly through the fields, and I had a lot of fun trying out this re-imagined version of her in Hyrule Warriors.
In the Zelda series, players never had a chance to tackle bosses by galloping around them with Epona like in Hyrule Warriors, so I hope fans will enjoy playing as Zelda characters in a game with a different type of action than you typically find in the original series."
Hyrule Warriors was released ten days ago and as you can tell by reading our review we really enjoyed it.