A batch of keys for the Early Access Beta have gone out to some of the people who helped test out the open alpha with feedback and bug reports. As previously mentioned, public Early Access on Steam is targeted to start in mid-to-late January.
Additionally, the first non-Windows builds have been uploaded to Steam, and are available to beta testers. They are completely untested, but I still consider this is a great milestone, as supporting a wide variety of platforms has always been a goal.
As for the game itself, I am currently working adding on more Victory Conditions than just destroying all rivals. There has also been some bug fixing and tweaking of the battle engine, improvements to the battle report window, increased variety of weapons and armor for the military units of randomly generated cultures, new city buildings and tweaks to the city economy mechanics and some new unit types.