We are being observed by a Galactic Empire. In the next 1,000 year they will (A) allow us to self destruct and nearly annihilate our selves and creating a reboot, (B) allow us to continue advancing technologically until ready to join the Galactic Empire peacefully, or (C) they will initiate the Apocalypse Genetic Weapon targeting only humans if they perceive we are a threat to them.
In the event of (A) and (C) scenarios with will colonize Earth and what few humans exist will be declared Citizens or Slaves.
Currently Human Observers are to guide mankind towards the right path but not to directly interfere, failure will lead to mankind's demise.