It sounds like the whole Blue Box thing could be coming to a head sooner than later from a second hand source to Sony -
poptopic.com.au
“I’m certain that the Death Stranding: Director’s Cut tease was a Abandoned is a Silent Hill game. I know this is all confusing, but when you see how Kojima intends to brings things together, it will all make a lot of sense. Fans can expect exciting news about their favourite franchises very soon. I promise,” the source responded.
An earlier story detailed something very similar about the recently revealed Abandoned trailer -
poptopic.com.au
“Sony still own the domain for BLUE BOX game studios and decided to revive it for the Silent Hill ARG marketing stunt to give the ‘fake studio’ a bit of validity. Hasan Kahraman is not a real person. The studio used to exist but doesn’t any more. It’s a front for Sony Studios.”
“I don’t know the terms of the deal but I’m pretty sure Sony figured out a work around by bringing in Kojima Productions as a third party to ‘help’ development, but I do know that Hideo Kojima has full creative control of both Silent Hill and Metal Gear Solid,” the insider concluded.
Grain of salt ‘n all that, but this all seems to be a bit too persistent and detailed to end up a joke.

Sony said to announce Metal Gear Solid and Silent Hill game "very soon"
According to a source close to Sony, new Metal Gear Solid and Silent Hill videogames will announced "very soon" and Hideo Kojima is involved.

“I’m certain that the Death Stranding: Director’s Cut tease was a Abandoned is a Silent Hill game. I know this is all confusing, but when you see how Kojima intends to brings things together, it will all make a lot of sense. Fans can expect exciting news about their favourite franchises very soon. I promise,” the source responded.
An earlier story detailed something very similar about the recently revealed Abandoned trailer -

Abandoned is Silent Hill and Metal Gear Solid returns to Kojima
Insider claims that Sony have struck a deal with Konami to bring Silent Hill and Metal Gear Solid back to the PlayStation with Kojima.

“Sony still own the domain for BLUE BOX game studios and decided to revive it for the Silent Hill ARG marketing stunt to give the ‘fake studio’ a bit of validity. Hasan Kahraman is not a real person. The studio used to exist but doesn’t any more. It’s a front for Sony Studios.”
“I don’t know the terms of the deal but I’m pretty sure Sony figured out a work around by bringing in Kojima Productions as a third party to ‘help’ development, but I do know that Hideo Kojima has full creative control of both Silent Hill and Metal Gear Solid,” the insider concluded.
Grain of salt ‘n all that, but this all seems to be a bit too persistent and detailed to end up a joke.