https://wccftech.com/rainbow-six-siege-burnt-horizon/

A few weeks back, a leak indicated that Rainbow Six Siege may be heading to a land down under for its next season, and now Ubisoft has confirmed it. Rainbow Six Siege’s first season of Year 4, entitled Operation Burnt Horizon, does indeed take place in Australia, and will include two new Operators – a “stoic Attacker” and a “quick-witted Defender”. According to that earlier leak, our Attacker will likely be called Gridlock, and be able to deploy a red tracking web, and our Defender will be called Mozzie and be able to take control of enemy drones. Ubisoft also hints there’s a new map set “halfway between here and nowhere” in the Australian Outback on the way.

Here’s what Ubisoft is saying about Operation Burnt Horizon at this point: