In a recent statement to Gamespot, Demon’s Soul director Hidetaka Miyazaki stated that a remake or remaster of said game isn’t outside the realm of possibility.
However, for it to happen it would be under a different developer. His statement reads:
It seems like there was a misunderstanding in a previous interview in relation to a remake or a remastering of the game, so let me reiterate here,” he tells GameSpot in a new interview. The Dark Souls series is Bandai Namco Entertainment’s IP, and Demon’s Souls and Bloodborne is Sony Interactive Entertainment’s IP. Hence, the decision to do a remake or remastering is under their jurisdiction.
For me and for From Software, I don’t think we’ll be involved with their happening, but it could happen through another developer.
This statement comes after an interview with him, where he expressed no interest in remaking or remastering Demon’s Soul.
From Software are currently working on a brand new IP with no details being revealed about it just yet.