Hmm..
Most of the information is found in the dev journals, just off the main page.
http://www.elementalgame.com/journals.asp
Omnirizon, units should be pretty diverse. The unit model is that you manufacture equipment, and equip and train people to use that equipment, rather than having generic units or RPS. It should be quite a lot different from Dominions, but I can see some definite similarities to kitting up thugs.
Here's one of the dev journal entries related to that.
http://forums.elementalgame.com/329473
Doesn't sound very much like either Galciv, does it?
Here's another.
http://forums.elementalgame.com/354240
All I know is that I'm going to try my best to kick the @#$% out of it in the beta period. Some of you should do the same.. although it will definately not be the least bit fun until at least the next entry period, which my guess will be January.
Do what you like. Not everyone liked Galciv much.