I'm still plugging away at the update. Exact ETA unknown, I definitely underestimated how much effort some things would take so it'll still be a bit before launch. Making some good progress though, and nice secondary progress with commissions; some light spoilers below.
Got the art for the next angel in progress, and the normal theme for the next party member, Alicia (earth trainer) is coming out AMAZING - ubercrow is doing Juno-Seto's work. Sam CG is coming along very nicely too, signed off on her expressions recently. I've also been looking into backgrounds, I really want to improve the Temple background, but it's weirdly hard to decide where to go with that. I have zero experience with background commissions and idk how detailed they should actually be lol.
As for the 'modding question' part of this; Divine Dawn was built from the start to have strong modding support. It's very easy to add new abilities/traits/etc, and harder but doable to add scenes, characters, combat areas, etc. That said, it is... not documented, like at all, and some parts haven't been tested.
I gotta focus on finishing this update first, but after I do, would there be much interest in me buckling down and spending some time writing guides and setting up Steam Workshop? Probably a few days-week ish. I could do some small example mods to help learn as well.