UPDATE 30/11: It's been confirmed by Rocksteady co-founder Sefton Hill that they not only will not be at the Game Awards, the Rocksteady Superman game is not real. Sigh.
It's been rumoured for a long time, but the new game from Batman: Arkham Knight developers is not actually a Rocksteady Superman game and the title Superman: World's Finest appears to be false - and it certainly won't be announced at the Game Awards next week.
The first game from Rocksteady Studios since Batman: Arkham VR in 2016, and the first full game since Batman: Arkham Knight ended their involvement with the Batman Arkhamverse series in 2015, their latest game has been a long time coming, and the wait may soon be at an end - but it won't be revealed next week.
Rocksteady's co-founder and professional dasher of dreams Sefton Hill responded to the rumours about their game being at the Game Awards, presumably in an attempt to undercut the disappointment felt by fans after the team's E3 no-show.
So if not a Superman game, what are Rocksteady working on? After the success of their Batman games it's logical that Warner Bros (who own the studio) would want to keep them on a licensed property. With Monolith on Middle-Earth and another on Harry Potter, it's certainly also logical that Rocksteady are still on DC Comics. But if not Superman, then what?
A full Justice League title is certainly conceivable, and would explain why it's taking so long. A Green Arrow game might be a step down from Batman but would certainly be interesting. Out of the other DC heroes, a Wonder Woman game would certainly seem most likely to us - an excellent fighter, the world's most popular female superhero, and her movie is the most popular DCEU movie (unless Aquaman unseats it this month).
The title "Superman: World's Finest" came from the website Game System Requirements, who have had a history with revealing titles early - Devil May 5 for example popped on on there before the E3 announcement. A Superman game from Rocksteady had been rumoured for a while now. Obviously they finally got tired of the Superman rumour.
In September Rocksteady were hiring for a temporary community manager in order to deal with a promotional campaign, starting soon, for their next AAA game. The fact that the role was temporary strongly suggests that they are gearing up for their next release, whatever it may be.