I, for one, am extremely excited about the adventure path "Iron Gods" planned for Numeria. I wanted to throw out a couple theories I had about what exactly the AP will be about....
1. The "Iron Gods" are giant mech-like creatures that have been reactivated from their millennium spanning hibernation to wreak havoc on the Numerian landscape.
2. The "Iron Gods" are beings from Aballon that are awaiting the return of the First Ones. After receiving signals from beyond the stars they do battle with Gorum, the Lord of Iron.
3. The Silver Mount is not one spaceship, but multiple spacecraft.... a battle armada, if you will, that has been sent to Golarion to "lie low" and wait for a time "when the stars are right" to herald in the arrival of our dark master who waits, dead but dreaming.....you know of whom I speak. Conversely, they are here to do battle with the Great Old Ones who have been summoned to this world from beyond the void.
4. The AP will take the players to Aballon for an encounter with Epoch, who cryptically teaches the PCs how to travel through time.