I don't think Sony would go ahead with a new Bloodborne without some level of input from the original team. If it is a thing, IF it is real, then I would expect them to have borrowed some staff from From Software to guide the project and make sure it stays "on brand". Besides, if Bluepoint is going to be doing original productions, they'd best be doing something unique compared to the other studios, and Sony definitely needs their own in house Soulsborne dev for the Demon's Souls and Bloodborne IPs to have value.