Overwatch has added a ton of skins and cosmetic items for it's "Summer Games" event. Players will be able to unlock country exclusive skins (which seem specific to each character's country of origin) as well as unlock plenty of other "Olympic" quality cosmetic items.
In addition to the skins and items, players also have access to the new game mode Lucioball. It's essentially Rocket League using Lucio and it looks pretty damn fun! Blizzard promises this will be the first of many seasonal events. Can't wait to see what they have in store for us next!