As of yesterday, an NDA seems to have been lifted, as we suddenly got a ton of new preview videos from media sites. I don't like to link to other forums, but since I'm probably going to be too lazy to keep this updated this way, and the one who made the thread over there isn't, I might as well.
General Preview Thread
The first post is the important bit, and here it is, in it's glorious detail.
(SPOILER)
Like I said, the one on the 2k forums is constantly updated with new info, while ours will not be (because I'm lazy).
However, I would like to draw attention to something I noticed in one of the vids.
Pigeons
There you are, troops kitted out and ready to rescue a VIP, and in front of you, on the open concrete, is a flock of frelling pigeons. Milling around, pecking at the ground, cooing like Tribbles.
Some of them don't care about your troops much, and just slowly waddle away. Others get spooked when you get too close and fly off, prompting others to fly off.
I mean, how awesome is that? So much detail has been poured into this game, not just the combat, or the strategy, but in making the world seem alive. Someone went and crafted a pigeon AI and added in pigeon sound effects. It's little touches like that which show just how much these developers care about quality and detail.