So, I'd like to ask a question/make a suggestion.
The RPS preview article said that planets are divided into provinces - you build buildings in provinces, there's adjacency bonuses, some provinces have hazards, etc. Does this mean that it might be possible for two different civilizations to own provinces on the same planet?
The vast majority of space-empire-building games treat planets as the basic unit of control. This is fine most of the time, but it can also be rather limiting. The only exception I can think of is the awesome-but-flawed Emperor of the Fading Suns. And Aurora, but I'm still pissed at Aurora for being so incompetently programmed that it's actually unplayable at a normal screen resolution.
In any case, having multiple factions be able to hold territory simultaneously on a single planet could be really interesting, for a number of reasons. It would mean that planetary invasions become wars of maneuver, where armies have to actually maneuver from province to province on the planet's surface. It would make it possible to have non interplanetary states on some planets. It could provide for space race scenarios, where two or more nations on a single planet could compete for colonies.
(and seriously, Paradox, if you're not going to make a spiritual sequel to EotFS, then I'm going to do it myself)