Yesterday's massive leak regarding the upcoming Xiaomi Mi 8 Youth got us the specs, but since it lacked photos of the device, the design remained a mystery.
Now the TENAA listing has been updated with all the images needed to have a closer look at the handset. The sides look like they are made of metal with the SIM card tray positioned on the left which leaves the volume rocker and the power button on the right. The back looks flat and resembles the Mi 8 SE except for the double camera alignment, which in this case is horizontal.
The front, unfortunately, is hard to dissect from the provided image but it's probably safe to assume that it will have a narrow notch given the alignment of the earpiece and the front camera. And since it's pretty small, the notch won't be able to house all the needed tech for advanced 3D face sensing tech, so this feature seems to be out of the question.
Source (in Chinese)