http://www.pcgamer.com/overwatchs-winter-wonderland-event-returns-december-12/

Overwatch's Winter Wonderland seasonal event returns December 12, bringing with it old and new holiday-themed character skins as well as a new Brawl, Mei's Yeti Hunt. 

In the above developer update, game director Jeff Kaplan teased a few heroes that would be receiving new Legendary skins: "two of our favorite junkers," also known as Junkrat and Roadhog, as well as Hanzo, who will be receiving an outfit that has been previously seen in one of Overwatch's comics.