We have more or less known something akin to Demons Souls 2 existed, from numerous posts and the fact that much of the Dark Souls 1 and 2 teams were different, including game director Hidetaka Miyazaki. Typically game directors are not contracted to sit on their asses, and he did not work much on DS2, leading anyone with 2 brain cells rubbing together to conclude that he was busy during all this time.
I think it would be good for the series to move away from he established lore and world of DS and DS2. If the game is titled Beast Souls, it means they can do something with animals/beasts, it would make the game more interesting for their artists, so they arent doing the same thing for the fourth time.
Imagine what you can do with gigantic beasts on PS4s hardware with the artistic design of From Software artists who have shown themselves to be quite excellent.