Not too long ago some analysts claimed that by 2020 Blizzard will almost certainly launch Overwatch 2 and a new Diablo game, but there might be another new project in the works too, which according to a recent job application published on Blizzard's official website will include vehicles.
The company, in fact, is looking for a Gameplay Engineer that can help the team "to help create vehicles and build vehicle handling features in a robust first-person engine for an unannounced project. The ideal candidate has proven experience in vehicle handling, with exposure to other game systems like physics, animation, and cameras. They must have outstanding people skills and a longstanding passion for playing games across multiple genres and platforms."
At the moment it's not clear if they're looking for someone to help on projects already on the market or if it's a completely new IP. We're really curious to find out, though. Are you?