Faolyn
(she/her)
Are the Savant and various archetypes written for LU, though? Because I have the Savant through the ENWorld patreon and wouldn't mind an LU version, with knacks or maneuvers or whatever built into it. But if it's the same, then there's no need.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.