Mysterious Google Device Passes Through FCC

A mysterious Google device appears to have passed through the FCC yesterday. This mysterious product was filed using the FCC ID A4R-GG1, the filing is vague when it comes to specific features of the device. 

Some have the theory this could be the new Chromecast reportedly coming later this year, many of the hints throughout the filling hint to the potential of it being a new version of Google Glass. What's your thoughts?