Looks good so far! Considering what's been referenced in the playtest packets, I'm interested in seeing what you're doing with the planes and gods--how much is D&D with the names filed off, how much is brand new, and so on.
Phew. This is slow work, but it's getting there. Here's what the rules site looks like at present - stuff that's hyperlinked in blue is done (and laid out in the book too), stuff that isn't is awaiting layout. I add material to this site as it finalizes layout.
Adventures in ZEITGEIST is for Level Up, though it doesn't require you to have the LU book, if your group just wants to run it in basic 5E.
The timeline, I believe, is that we're doing a Kickstarter for the first new ZEITGEIST adventure right now: Death of the Author (which is designed to be played standalone, without requiring any knowledge of the Z setting). Then in the not too distant future there'll be the Level Up core books, and after that the Adventures in ZEITGEIST setting book.