Why would anyone doubt Dusk? This whole "I'm not believing you" stuff is just being cynical for the heck of it is off putting. Dude literally posted those pictures and yet somehow it was fake?
Like maybe you should chill with your takes agasint an insider when they share some nice information on project. Sure things not always pan out but he isn't here to get some brownie points and bail.
Dusk's been legit when it comes to Resident Evil leaks, so I don't see why now for Silent Hill, a much weaker IP, is the space to be skeptical about. The only prediction they made years ago that never manifested was Konami was making a Castlevania game to "counter" (this was the phrasing Dusk used iirc) Bloodstained, and this was before Bloodstained released. Aside from that, they've been on the ball with nearly every call they've made.
More of you should begin to ask "will it be good?" instead of "is it real?" given the track record of this franchise.