Honestly speaking, Demon's Souls is far from a game who could deserve so much hype and secrecy
If will be revealed as their real project, I'll be legit disappointed, classic remaster or remake no one ever asked for
I don't know, I never played any Soulborne game, and in general I don't know much about them besides being dark fantasy hack and slash action games, but I am sure they are great, and fun, which is why they have so much fans.
Still, I heard, or rather read them being mentioned so many times in gaming related articles, and on forums, that I'm just sick of it.
There is also the fact that I just don't think anything Soulborne is so outdated that it needs remaster / remake - saw some Demon's Souls screenshots, and, IMO, they look decent.