Unfortunately details about this particular hero, referred to as Hero 26 for now, is pretty much non-existent at this point, and also according to Kaplan, it will be a while before we even see it released. “Hero 26 is very playable and very fun internally, and that’s all I’ll say. It’s not coming out as soon as you think […] but Hero 26 is already amazing. I don’t think there’s such a thing as too many heroes, but I think we also need to come out with heroes at a good pace.”
The last hero that Blizzard released for the game came in the form of Doomfist. However shortly after the character’s release, there were rumors and a leak about the game’s next hero, who is said to be a hero named Psyren and is member of Blackwatch and a student of Reaper. We cannot confirm if the previous leak and rumor is true so take it with a grain of salt, but we guess at the very least players can take some comfort in the confirmation that Blizzard already has a new character being developed.