Apparently, the Dead by Daylight team is working on an exclusive AAA for Xbox.
From the curriculum of a developer of Behaviour Interactive, in fact, it emerged that they are working from 2019 to a AAA game for XBOX and PC (this suggests the exclusivity of the project) developed in Unreal Engine 4.
The developer is precisely a level designer:
This does not automatically mean that it is a game developed entirely by Behaviour Interactive, there is also the possibility that it is acting as a support team for a project of another development team (Behaviour has worked on many games as a support team, recently, for example, helped the Codemasters in the development of Dirt 5).
So we don’t know if it’s actually a new Behaviour Interactive game, or if they’re working as a support team for another game.