Released the new update - version 1.3 now.
New races:
-Drogbar - a race from the Legion expansion pack - large, underground dwelling humanoids who value strength.
-Tol'vir - a race from Cataclysm - quadruped wild-cat men.
-Tauren - everyone even mildly interested in WC should know these guys - they have a unique weapon available only via reaction, the War Totems that were used by the Tauren units in WC3 - it's a slow but strong type of weapon, ala the Dragonslayer, and can only be made out of wood.
-Primals - a "faction" race from WoD. Consists of Podlings, the Botani, the Infested, and the Genesaurs which are very rare but are the third biggest creature type (often saw them get 100s of notable kills in worldgen, and even more unnotable ones). They are somewhat tougher physically due to having bark instead of skin - the Infested also have vines growing from their hands that can be used for lashing. If you decide to play in fort mode, just keep in note they will also impose wood-cutting quotas like the Elves do.
-Qiraji - multi-caste race of hostile insect-like humanoids. The base caste is a simple biped covered in a tough carapace; the Gladiators have pincers instead of hands and a single horn, and are quite large; the Swarmguards lack the carapace of the other types, but can fly instead and have scythe-like blades on their hands; and the Eight-legged (or Prophet) caste has several psychic abilities that they can use.
On top of that, as I mentioned, the Naga got a revamp, now having 3 more castes - Sea Witches, Naga Anomalies and Naga Brutes.
New megabeasts:
-the Gronn - gargantuan one-eyed humanoids. They have a strong projectile attack, an AOE knockback dust-type attack, and can use a shout which can cause dizziness in up to 5 nearby enemies. While they are counted as semimegabeasts in the raws, so there's more of them, they have the same attack triggers as the stronger megabeasts.
-the Magnaron - tougher relatives of the Gronn. They have a layer of stone over their limbs, granting some amount of protection, and have the same shout and dust attack as the Gronn - their projectile attack is shorter range, but can fire up to 3 boulders at a time, and they can also use a Reverberating Pulse which can cause pain and dizziness on top of lowering speed.
-Evil Eyes - semimegabeast versions of the Gazers - the Gazers themselves got one new special attack and their other ones were buffed, whereas the previous versions were moved to the Evil Eye. They are much smaller, lack the poison gas attack and have 9 tentacles instead of 6.
Other creatures:
-Feral Goblins - as in the previous post, they are the Dragon's Dogma-style goblins - they have several castes, which are progressively bigger, and they basically serve as a stronger equivalent to vanilla Kobolds.
-Vile Eye - the smallest relative of the Gazer family, they are kobold-size and have the weakest magical abilities of the three - of course, that still means they're tougher than most other creatures of a similar size.
-Observer - the flying squid-like Demons from The Burning Crusade. They are found underground and in evil biomes, and can use three different types of eye beams - one can cause enough pain to instantly knock their target unconscious, one can cause blindness, and the last can cause necrosis, a fever, and coughing blood.
There's also a new type of tree found in savage tropical jungles, called the Razor tree - unlike other types of wood, it has qualities on par with iron - although due to their specific biome setup they're very rare.
Didn't add the Raptors yet - that'll definitely be in the next update along with several of the smaller wild creatures. As for new races, not sure yet what I'll go for.