Apart from Diablo 4 and Overwatch 2, the Blizzard team is also working on a completely new project. They announced that it will be a survival game, located in a place we have not seen so far, a lot of heroes we have yet to meet.
According to the conceptual drawings that accompanied the announcement, we see how the characters in the game will be human but will head to a fantastic world with castles and medieval weapons. It seems that it will not be an open-world game, but it will have levels, judging by the open applications for level designers.
This project is at a very early stage of development, and Blizzard is still looking for new employees to work on. In translation, we will not see him for a long time. Therefore, once launched, it will probably be exclusive to the Xbox console and PC. The official announcement states that the game is being developed for "PC and console" - it is not specified which console, but the console is in the singular.