Some info/riddles extrapolated from Giant Skull's website (Stig Asmussen new studio)
This isn't a rumor but moreso information that might be helpful in the future when the announcement of their games gets closer.
So Giant Skull's website has a command prompt that responds to certain keywords, the one that has been reported by most news articles is "GAME" that returns "Transported. Becoming. Exhilaration."
I managed to get a bit further than that: submitting "Giant Skull" I got this message with some highlighted characters that spell out "Concept" so of course, I asked for Concept and I got a poem.
My understanding is that the 9th month is when the game started preproduction, probably September in 2022 or 2023. and the first month indicates January 2024 when they actually started proper development of the game. Maybe there's more to this so I'm posting this so people can play around with the website.