The game is being developed by From Software, and Miyazaki seems to be a huge fan of George R.R. Martin as has helped with it's development as well. no one knows how he helped or what he did (probably story focused). But I am VERY excited.
It's said to be an open world action RPG. So I imagine it will be very Souls like, maybe single player only like Sekiro?
No release date as of yet, only on Xbox and PC it seems.

Have you blocked out that lovely bay window with all your TV stuff? Monster!