First, I gotta say that I absolutely love the way an Immense Abundant Habitable/Frequent Special Worlds map feels. It just... feels "right". Kinda like the first time I played an Immense map during the TA beta.
The two new game setup options were a very, very pleasant suprise for me.
Second, passive spying is a great addition and it really completes that particular subsystem. Now if only the Espionage ability itself actually did something useful (*nudge, nudge, wink, wink*)
and perhaps Courage too, while you are at it 
Third, the planetary governers are a great step forward for the game, and I can't ever imagine not having them. But there are two things I think would complete the feature:
1. A way to set a planetary governer as the "default governer" and would automatically queue up buildings once a planet was intially colonized/taken over. Sure, it only saves a couple clicks.... but hey, a couple clicks can add up quick on an Immense map with abundant habitable planets. 
2. Persistant planetary governers among games for each Race, kinda like how ship designs can be saved to disk. Set 'em up once, and forget about them 
As a side note, it took me the longest time to find the place to change a Planetary Governer. Heck, I didn't even realize there were controls for changing the auto-terraforming of tiles! 
Also...
Would it be possible to add a queue to the ship build window like with the colony build window? It gets ever so extremely tiring to constantly zoom back into a planet or hunt for planets using the colony list just to change what ship you want it to build.
This would be an awesome addition to Planetary Governers. 
All in all, awesome work on the 2.0 patch!