Here's the official site it seems. For now at least:
It has a couple of new pics, and an example of box art which I'm willing to bet is gonna change. I really don't like that new armor though. Way too generic.
If I'm getting the gist right from that main page, we've now moved from Larry Niven-esque Ringworlds and onto Dyson Sphere's. What's next, O'Neil colonies?
They already did Dyson sphere's in Halo Wars. To awesome effect.