While the video in question doesn't contain any reference to the yet-to-be announced device, its the description accompanying the video where the Lumia Phone X was mentioned as one of the four devices that currently support Con
The description - which has since been edited - read (translated):
Homemade Welcome Mobile phone Continuum, this function can convert your phone large screen projector and utilities. Use dock or adapter to connect to a TV or monitor, and then use your application on a larger screen and view your content. You can also make your mouse and keyboard computer phone has the same powerful features, such as production of Office documents, send e-mail, and even type text messages. Upon completion, the file will be saved on your phone, you can continue working. Of course, you can watch videos, view photos, surf the Web and so on. Note: This feature requires a compatible mobile device is intended for use, for example Lumia 950/XL, Lumia Phone X and Acer Jade Primo.
There's been information (not even rumors) about the Lumia Phone X so far. Arecent report suggested that the Lumia 650 will be the first and last Lumia phone for 2016. So perhaps, Microsoft is targeting a 2017 launch for the device. And who knows, this could also be the long-rumored Surface Phone, which is said to release this fall.