Hi Andrea, to answer your questions:
1. By ordering the Digital Bundle on Backerkit, you get everything that will eventually be released here on itch. The only difference is the discounted price ($20 for both games instead of the $30 or so they'll cost together once published).
2. Pardon the confusion regarding EXILES' status. The game is currently going through a bit of a rebranding 😆 This will be clearer in the future, but in summary: Though it was originally conceived as an expansion (and this free playkit omits certain details as it assumes familiarity with Crescent Moon) , the final release will be standalone. You may get some added context from reading Crescent, and there's some compatibility in terms of material (NPCs, backgrounds, items, etc). But all you need to play and understand EXILES will be included in the final release.
3. The revised edition of Crescent Moon hasn't been worked on yet. It will come out alongside the full release of EXILES both physically and digitally. If you end up ordering the digital bundle, you can email me at ema @ pocketcompass . co to access the PDF for the first edition for free, though! 1e and 2e differ in presentation and some rules, but they're about the same game otherwise.
Hope that answers your questions. Let me know if there's anything else you'd like clarification on. 🙂