You could make the argument that this Conversations With Creators video about Killzone: Shadow Fall is simply an elaborate advertisement for the PS4, and I'd probably agree with you, but I found this video interesting nonetheless. Members of the Guerrilla Games team speak out about developing for the PS4 and what the machine is capable of and it's all relatively insightful stuff.
In the midst of the explosions and particle effects and whatnot, it was sort of fashionable to dislike the Killzone: Shadow Fall demo shown at the PS4 reveal, but I've always enjoyed the feel of the Killzone games. I actually really enjoyed Killzone 2 as a single player experience. Sure, it's relatively generic but it always felt right to me. The game always had an interesting weight to it — sort of like Halo. That's a good thing as far as I'm concerned.
So while I'm completely over shooters in general, I can't help but get a little bit excited at one of the most technically proficient development studios going all out on a new piece of hardware. I just can't help it.