LeEco's official Weibo account has reblogged the post of a Chinese actor, thus in effect confirming that the device in the shots is the real deal. The device is Le Eco Pro 3.
It looks pretty simialar to the previous LeEco offerings. Volume buttons are on the right side, the power button as well.
Past leaks say the Le Eco Pro 3 will come in two versions, both with Qualcomm's Snapdragon 821 chipset.
One will have a 5.5-inch 1080p touchscreen,
a a 16 MP rear camera,
an 8 MP selfie shooter,
6GB of RAM,
64GB of storage,
and a 4,070 mAh battery.
The other one is a little more expensive, and thus better:
a 5.7-inch QHD touchscreen,
dual 13 MP rear cameras,
a 16 MP selfie snapper,
8GB of RAM, 256GB of storage,
and a 5,000 mAh battery.