Twitter user pl_evil has helpfully translated a recent letter to shareholders from Bloober Team, showing that their new game "Project C" will be revealed later this year. This will be the studio's next original game, after they wrapped up Layers Of Fear last year with, confusingly, Layers Of Fear (the natural progression for a series: Layers Of Fear, Layers Of Fear 2, and then Layers Of Fear again, although it was going to be called Layers Of Fears at one point).
Bloober Team are currently doing a lot of IP work for other people, with the Silent Hill 2 remake due out later this year, and a game codenamed "Project R" in concert with Skybound Entertainment. Skybound are The Walking Dead company, so I wouldn't give you long odds for a bet on what Project R is about. Neither would I be surprised if Project C is unveiled this summer by a man named Geoff with shiny shiny trainers. I'm interested to see what it is, and honestly I'm hoping it's a brand new standalone thing, rather than a forced sequel to Observer or 2021's The Medium (where I got the header).