First I'd like to congrat. stardock & ironclad on their SoaSE success, even though I'm not a fan of RTS the demo did prove to be appealing for a 4x strategy game fan. I also would like to propose some game development ideas 4 the future GalCivIII.
I always liked the ideas of total war franchise that is about the marriage of turn-based strategy and RTS which is ,unlike Sid's CivIV pure turn-based game, a good way to appeal to a wider spectrum of gamers who are in to action oriented stuff instead of sitting back and thinking their long-term strategy in term of turns. Therefore, my suggestion would be the good old 4x style of GalCiv with a pinch of optional RTS in the battle screen, and to take it further let's say planet invasions with ground encounters in all their varieties from plains, forests to mountains and volcanoes...etc - also sea & air encounters will spice it up. Together with the beloved fleet battles in space but with an optional control over the battle SoaSE style " now SoaSE is genre of it's own, hehe
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Oh Oh, I've got another Idea If GalcivIII were to develop in to the previous idea I had in mind multiplayer can be implemented for the battles part, man that will be waaaay coooool 
Thanks 4 GalCiv it's really the closest game to my dream genre that never came to life whether it's in a Sci-Fi, fantasy, history...etc setting.
Go Stardock, a really different game Developer/Publisher, a one who actually listen to their customers instead of milking money out of them till they feel they have to do the "Arrgh, har har" thingie in order to mod their games properly for a worthy extended playability without the fear of ending up with a busted overused CD or messing up their PCs with a stupid protection system.
Note, this post is actually a combination of my three replies to GalCivII TotA feedback post, but I felt like this subject needs to be discussed separately in order not to disrupt the feedback.