As with any forum, you are going to see people making statements in such absolute terms in ways that make them sound like they are StarDock employees that you have to take their statements with a grain (or more) of salt. This time, since StarDock has told us that GC3 is being re-written from the ground up with a brand new custom engine, and has mentioned that some of the things that were hard coded in GC2 are going to be in XML in GC3 (including the random events), Willy is most likely very accurate.
I admit I was lazy and didn't bother digging up the source post. It took a while, but here:
There's going to be a lot more events in GalCiv III than GalCiv II. However, i suspect there will be more player control (at the beginning of the game) in terms of their frequency and power.
I don't know if you guys knew this but in GalCiv II I hard-coded the events in C++. Or in other words, I'm an idiot. It meant that each event was very labor intensive and there was no real granularity in them. You could either have them or not.
But in GalCiv III, the events are XML driven (ala Elemental). Heck, that also means modders can add their own events and it means that events can have a severity scale which means they can be hooked up to a setting UI.
That was for events; there was another post specifically about the starport building that I haven't been able to locate again. I'll keep looking.