Here is the new Killzone Shadow Fall trailer for the PS4.

"Set thirty years after the events of the Killzone trilogy, the world of Killzone Shadow Fall is a very different place. Forced together by circumstance, the two rival factions of the Helghast and the Vektans live side by side in a futuristic city, divided by a vast wall.

Tensions are high, and a war can spark at any moment. In the midst of this all stands a Shadow Marshall, the most special of the special forces, tasked with maintaining the delicate balance."