These pics from GW's Astronomican are making their way across the net now, so take a look.
It looks like we get a look at a pair of Beastmasters leading their Razorwing and a couple Khymerae. The beasts are not much different than I was expecting, but it's nice to get a little preview of what is coming. If I can find a clearer pic, I will post it, as it would be nice to see more detail. Horridform over at Heresy Online was apparently first in finding this.