Possible Pixel 2/Pixel XL 2 camera sample found deep into Google's own teaser page
Checking the EXIF of the image reveals that it has been taken by a Google device, but the model in particular has been wittily edited to "Not that easy ;)", which could easily be assumed as heavy hinting that it's taken with any of the upcoming Pixels.
The image in question
What's more, the picture's EXIF also reveals geotag coordinates that lead to... Yes, you guessed, Google's own HQ in Mountain View. Funny!
Of course, there are other things that Google can be implying with that image instead of trying to showcase the Pixel 2/XL 2's photography prowess, because let's be real - this image is not that great. For example, it could be hinting at black and white color versions for the phones, or even suggesting that the next Pixels could score a native dark theme alongside the default one. As we know more, so would you, but for now, we'd go with a Pixel 2/XL 2 camera sample!
source: Google via Reddit
Things that are NOT allowed: