I've been working on this for several months now, and I figured this was as good a time as any to let everyone know about it.
The first supplement for SA2 will be Chronotech. (That's a PDF download, ~300k). This is where the Dreamers and Transcendental Worshippers went. Enjoy, give feedback, perhaps even playtest (pretty please?). I'll be expanding this further if there's interest in it, which I sort of expect there will be.
In other news, I've contacted my first choice for illustrator, and we'll see if I hear back from her and how that goes. I'm hoping to get a bunch written over the next few days, since I don't go back to work until the 3rd. I've already started reorganizing and expanding the Setting chapter, which is the one I think needs the most help. The Transcendentals will stay in the core rulebook, but will move into the "other setting elements" part that's at the end of the Civs chapter, with the aliens and failed civilizations and Unbound and such.