There's an interview on PC Games Hardware with the English translation of their German conversation with Creative Assembly about Alien: Isolation, the upcoming game based on the Alien/Aliens film franchise. Here's their explanation of the technological advantages to be enjoyed on the PC edition thanks to their custom engine:

Different platforms afford different advantages. Modern PCs with high-spec graphics cards cannot be beaten for shear raw power. What this translates into are higher resolutions and frame rates, which are always good. Also we can afford to scale assets (geometric, textural, animation, etc.) to take advantage of the extra fidelity. With higher resolution and more raw power available tessellation can occur earlier. Shadow algorithms can also be more realistic.

Many full screen effects can be refined due to the available power, for example ambient occlusion, anti-aliasing techniques, motion blur and depth of field and high resolution multi-monitor support can only be achieved by utilizing the GPU power available on the modern PC platform. We're also looking at support for 4k resolution for the best fidelity possible.
[...]
Our engine scales very well with multiple cores. Certainly I can confirm that more cores will increase the performance, if you don't get limited by GPU performance! We have a generalized job system with priorities and dependencies. All of our code uses this. This means, for instance, that if an AI routine can run simultaneously alongside a rendering routine then it 'just will' if the opportunity arises.