Bethesda and the Arkane Studios could work on a continuation of ‘Prey’, about which you want to have found references in the current ‘DOOM Eternal’.
On a bookshelf there is a book that says “2 Prey or Not 2 Prey”, Which uses a well-known quote from William Shakespeare. “To be or not to be”Or figuratively, should we develop a Prey 2 or not? The Easter Egg at DOOM Eternal could suggest that a final decision has not yet been made, but a continuation is being considered.
For Bethesda and Arkane Studios, the Prey reboot was a huge success and was supported long after its release. This usually speaks in favor of also developing a potential sequel. At the moment, however, it is only speculation and nothing official.
The Arkane Studio in Austin is currently developing the new brand ‘Deathloop’, which was announced at E3 2019. What the second studio in Lyon is doing is currently unclear. At the moment there are at least many jobs advertised, which doesn’t seem to be doing nothing.