Hey, glad to hear you've been enjoying it!
I don't know how detailed to get here lol, but I'll say that the Aether is an endgame area related to the finale, so don't expect it soon. I would say we're somewhere around 33-40% of what I'll likely do with the game after all the post-deepwoods stuff, and the end of the first of 3 arcs. The second two will hopefully go a bit faster, lol.
Rosalyn is wife material.
High corruption will likely have some kind of immortality twist to endings, I haven't finalized the details yet but it makes sense that if you become an incubus you should get succubus immortality, right?
Thank you again for the kind words! I will keep at it, I love the game and characters and still have a lot of ideas I want to run with.