Numerous different reports from June 2016 state that a new building was found in Petra with Google Earth. I can't find any external verification of these reports. Has this building been excavated? Is there any evidence that it exists other than satellite images? Has anyone proved that it wasn't a false-positive?

Massive discovery ‘was hidden in plain sight in lost city’

IT WAS hidden in plain sight for thousands of years at a popular tourist spot. Now, this ancient monument has been uncovered using Google Earth and drones.

Mentions include,

The last of which says "Tuttle said there are no plans to lay bare the entire platform."