It's actually going to release sometime during the first quarter of 2010.
Check out http://pax.stardock.com for more info.
Gave you karma for your avatar 
And with all the rumors about no 3rd micro expansion pack, then what happened to all the talk about them making 3 micro-expansions and then possibly releasing all together as a bundle in stores....or was that just talk back then? Not concrete plans?
Hope you guys make a 3rd expansion....attack oriented...or even economic?...more content (moons!!!!!!!!)...since we have defense and diplomacy....the 3rd should be DESTRUCTION....(and I'm delirious so don't mind me).
-Phal