As per the datamine leak earlier, Blizzard announced a new Overwatch map today at Gamescom. It is indeed called Junkertown, and there's a lot to unpack in this new Escort level including what might possibly be a new character.
Junkertown is the Mad Max-style home to both Junkrat and Roadhog. As such it's an industrial nightmare presumably in the outbacks of Australia. Full of ramshackle buildings, sand, and lots of fire, Junkertown is home to robot corpses and machine scraps. However, the most interesting part of the trailer is the introduction of Junkertown's Queen.
She doesn't appear in the trailer physically, but you can hear her voice throughout the trailer as she essentially delivers Junkertown's manifesto. There's also a quick pan over her throne and some unique weapons, including something that looks like a flamethrower spear(?) Either way, it's unlike Blizzard to just introduce a character as interesting as the Queen of Junkertown and not have fans speculating on whether or not she could be a new character. Especially since after Doomfist, Blizzard's last big character reveal.
As part of the Junkertown payload's vanguard, it will be up to the attacking players to deliver the bounty of gold and explosives to Junkertown's queen. So strap in and get ready to hop onto the payload at the "apocalypse."