Over the past week, Blizzard has been teasing Overwatch fans with an upcoming event called Operation White Dome, as well as the addition of the game's 27th hero. While we still don't have a definitive answer as to who the 27th hero could be, the hints Blizzard has left so far offers a few different possibilities.

One of the most popular theories is that Hero 27 in Overwatch is Private First Class Emre Sarioglu. Little is known about Sarioglu beyond that they served alongside Ana, Torbjorn, and Reinhardt during Operation White Dome. Operation White Dome is the incident where Torbjorn lost his arm, but it remains to be seen just how important Sarioglu was to the mission, as he is only mentioned in passing by Ana and not at all in Torbjorn's letter home.

Torbjorn's letter, by the way, could be evidence that Hero 27 isn't Emre Sarioglu at all, but rather, someone that is related to an existing Overwatch hero. Some fans have suggested that Hero 27 will be Torbjorn's daughter Brigitte, who was previously seen in the Reinhardt animated short "Honor and Glory."

Overwatch: Who is the 27th Hero? - SLAGA V3 schematics

The evidence that the next hero is Brigitte is rather compelling. For one, Torbjorn's letter mentions how Reinhardt is given the honor to name his daughter and be her godfather after saving his life during Operation White Dome, cementing her connection to the next event. Secondly, Brigitte is known for creating weapons and armor for Overwatch heroes, specifically the hammer-wielding Reinhardt. Considering this, perhaps the hammer-like SLAGA V.3.0 weapon seen in the schematics was built by her so that she can join her father and godfather on their missions.

Besides Private First Class Emre Sarioglu and Torbjorn's daughter Brigitte, there are two other theories that fans have proposed for Hero 27. One popular suggestion is that the next hero is the Junkertown Queen, whose poster can be found all over the Junkertown map. Blizzard has a history of teasing heroes in-game before they're officially announced, so it would make sense for the Junkertown Queen to be added to the game eventually, even if she isn't the next hero.

Finally, some fans have suggested that the next Overwatch hero is none other than the jetpack cat hero that Blizzard was experimenting with before launch. This theory is one of the flimsiest, with the only evidence being an orange cat paw seen in the corner of the SLAGA schematics image.

Whoever (or whatever) hero 27 is, Overwatch fans should find out within the next couple of months.

Overwatch is available now for PC, PS4, and Xbox One.