The "Ask Sev Questions About the Lore That He Can Finally Answer Now" thread

I'll start:

-Were there ever any plans to let us explore the Gromnatross moon base?

-Was Viridian Rise supposed to lead to a Big Bad Dude story arc? If so, who was the villain going to be?

-Any other major story arc ideas batting around?

-Any secret "big reveals" that had been held in reserve but never had a chance to be trotted out?