I think since they will completley redevolop the game for the PS4 they should be using the engine from bloodborne now
- Bloodborne is able to handle huge monsters, a lot of bosses proof it.
- Bloodborne can handle feathers and hair pretty well, there a lot of huge monsters with many hair on their skin. So the collossus protagonist could be modeled with this engine.
- The enverioment is reminding me a lot of the last guardian footage they showed.