Didn't Sony say that the reason why Bloodborne 2 or Remake or Remaster hasn't happened is because Miyazaki is busy? And didn't Miyazaki himself say in an interview that he isn't interested in making remakes and that he'd rather do new stuff? And I don't have confidence in Bluepoint to pull it off.
I think From might do a Bloodborne 2 one day. Maybe for PS6. But I don't expect that anything will be done with Bloodborne 1.