Well, everyone has emails, at least, XD
I am not big on social media, in fact I dragged my feet even to get on Discord, so I guess I am a bit harder to reach than your average indie dev.
Originally, the academy wasn't going to be in the game: I had plans to wrap things up a while ago already, but patrons voted to extend the development and things are taking much longer than I originally estimated. The game has been in development for several years, so at this point I'll have to live with some thing not being perfect for the 1.0 release. That doesn't mean I can't update the game at a later date, but I want to get some closure and then move on to my next game.
I kind of want to make a time travel game, but I am not sure if I would set it in Caliross, although it's something to consider, now that you make me think about it. Then again, it's going to be years before I get around to it, most likely (my next game is already decided, and in the early stages of development).
Eliza doesn't deal directly with Kira, but she does have contacts with the League of Merchants, which is why the two never really interact (Kira doesn't really have a reason to be suspicious of her, and her bosses have business with Eliza, so there isn't a good reason to have them meet). While she does have her own "bad end", she is also featured in the ending slides if you completed her path, and she affects a few things here and there, actually (for example, you can't become empress if you are involved with her).