The Thyrrus: look a lot like a squid (hence Imperial nickname of "Squiddies") Stand shorter than a humna and use Plasma technology
The Umbra: Basically a small race of black orbs (bear with me) that have the ability to manipulate darkness and shadows to create weaponry during battle (appears light kills them) appear to create some kind of Psionic pulse upon death
The Q'orl: Similar to Vespid in appearance , though they possess more limbs and have a bio mechanical interface on their Thorax's (possibly a weapon mount)
The Hrud: Not space Skaven as many assumed (THANK YOU GW!), looks like a cross between a Predator and the creature from the Black Lagoon (this is of course minus its normal robes)
The Nekulli: no real info given, but they have a weapon called a "Whisperlance", sort of a cross between and Eviscerator and a rifle
The Drugh: only a mouthpart shown, notes say "larval invertabre with psionic capability"
Xenarch: confirmation of Electrical weapons, picture given of a "Conduction Spine"
The K'Nib: Appear to have ten limbs (no picture given, just a Power Fist like weapon with note "limb 5 of 10" next to it)
The Demiurg: Use "Crystalline metals" whatever they are
The Viskoens: partly wiped out by the Tyranids, also appear to possess the ability to regenrate a whole organism from just one limb.
Orks, Eldar, Tau, Kroot and Nids: Most of the stuff is old hat, but i'll have a proper read through later tonight, appears Eldar bones are some kind of solidified liquid (possibly Wraithbone?)
peut être de quoi nous faire plaisir !
Y EN A MARRE DES SM !