It looks like Overwatch's next season event following the Holiday season will Year of the Rooster - celebrating Chinese New Year. Overwatch Twitter accounts made the teaser a few hours ago and you can see them below.
Expect a new set of loot boxes with limited cosmetic items as well as themed game modes to best suit the celebration. It starts on January 24 but no date was give for how long.
It's a teaser, more like a heads up really, but expect a more detailed announcement on what to expect from the upcoming event.