A few days ago, a piece of concept art was shown by the Mexican Overwatch World Cup Twitter account that included the portrait and name of an unannounced new character named Sigma. When asked about Sigma in a livestream, Overwatch game director Jeff Kaplan didn't deny his existence, and now a new teaser trailer may provide even more evidence that Hero 31 is in fact Sigma.
The Overwatch Sigma teaser trailer begins like any other Jeff Kaplan Developer Update video. "What's up everyone? This is Jeff from the Overwatch team," Kaplan says. However, the Developer Update is quickly interrupted by what appears to be a black hole, and Kaplan is replaced onscreen by a bunch of different math equations as a piano plays in the background. The equations then begin to shake and the music becomes sinister before the video abruptly cuts off.
This is almost certainly a teaser trailer for the unannounced Sigma character in Overwatch (or whoever Hero 31 is). The main evidence in favor of this theory is that "sigma" is also a symbol in math, and the teaser includes a variety of math equations.
In this quick Developer Update, Game Director Jeff Kaplan goes into detail about the upcoming…— Overwatch (@PlayOverwatch) July 20, 2019
+ ⋜ π ⩲ 🎶 \ + ≠ pic.twitter.com/adRWRf6VuW
Overwatch hasn't really used cryptic teasers like this since way back when it released its first post-launch hero, the Damage character Sombra. Fans didn't react positively to how drawn out Sombra's reveal was, and so all future heroes were announced in a more straightforward manner. However, as long as Kaplan and his Overwatch team don't wait ages to properly reveal Sigma, they will likely avoid similar criticism.
Of course, we have to consider the possibility that Hero 31 isn't Sigma. Prior to the leak of the Sigma art, the prevailing theory was that Hero 31 was Mauga, a character introduced in Baptiste's short story that seemed to have all the fittings of a new tank class character.
Ultimately, all we know about the next Overwatch character in an official capacity is that they are male. More information on Hero 31's identity should come to light in the coming weeks. In fact, more news could come as early as this week, as Kaplan teased as much in a recent stream.
Overwatch is out now for PC, PS4, and Xbox One.