I agree with the like of the system but disconnect from the setting. With the idea of discovery being the chief component of it all, and being given a setting where untold worlds are in the past, you could conceivably just make up whatever you want, but again, it does feel random.
I would take the reigns, but I'd also rather flesh out my idea. With the current sentiments, it would just be an add-on to the randomness and distraction from Tarshu. My idea involves a gigantic robot hand/arm breaking through some earth as a start of some event.