A number of games have been published or will be published that are similar to Bloodborne in spirit but aren’t “true” sucessors - see Thymesia, Lies of P, or maybe even something like Blasphemous. Furthermore, discussions about how a sequel or prequel could look like have been had on YouTube, including bigger channels like Vaati, where concept arts have been created.
Based on all of this, how would the ideal sequel/prequel/successor/whatever to Bloodborne look like for you?
I like the idea of exploring ancient Pthumerian civilisation set way back before the happenings of Bloodborne. I imagine that setting could prove to be quite interesting both in its design and lore and could further expand the existing knowledge on Pthumerians, their culture, and maybe even their labyrinths.
I think Bloodborne + The Old Hunters are nearly perfect as their own self-contained thing, so my ideal would be a spiritual successor in a new setting but retaining some of the DNA of Bloodborne. It would be really difficult to replicate what they did with Bloodborne in any sequel or successor; the game was truly lightning in a bottle, like the first Star Wars movie.
That being said, if there’s going to be a sequel set in the same world, exploring the old Pthumerian civ would be very cool and interesting.