Blizzard is teasing something new for Overwatch on Twitter, as the tweet in question shows the text "Calm before the storm" and a short teaser featuring a brick wall with a variety of posters and sprays. We can see Lucio on one of them, one that calls for rights for Omnics (robots in Overwatch), and another with "No robots".
While the teaser video still remains a mystery, we can probably expect a new hero (the 28th) or map for Blizzard's shooter. Expect more teasers and hints the coming days, but for now, what do you think it could be?