Great question. I will expound more later, but basically the idea is that there will be a new dropdown in the lobby that will let you select a "type" of Zenith aliens, including None or Random. This is like selecting an AI type, essentially, but it is for this new faction. Then, based on the type selected, it will include some neutral Zenith aliens somewhere out in the galaxy, and they will have some behavior.
I say "some behavior" because they will vary wildly in how they act based on the style chosen for them. Think of these as sort of like scenarios, almost, or sub-scenarios: the Zenith aliens are a fragmented race of very disparate groups, and depending on which groups you encounter (the dropdown again), they'll act very differently.
The current ideas for them:
http://arcengames.com/forums/index.php/topic,2002.0.htmlhttp://arcengames.com/forums/index.php/topic,1997.0.htmlAnd then I'm also looking for at least two broad new behavior styles, if not more. I'll come up with some of my own, but depending on how hard they are to implement I may do more than the minimum of 4 that I've kind of set as my benchmark. I also expect to see this grow over time to some extent, this might be one of the few cases of "expansion-only DLC," which generally I'm very much going to shy away from. I'll have to think about how to expand that in the future, hmm.