When you've been oppressed for your entire life, freedom is terrifying. That doesn't mean you should reject it, but it takes time to get used to. I look forward to seeing how she gets through this.
...Akane is a bit terrifying, but it's amazing that someone is able to replicate Ai, even temporarily. I do think a relationship based on that wouldn't be fruitful though, as she'd just be acting for the entirety of their relationship, which doesn't seem healthy.
I still think Kana is best girl.
I think Walter will probably say something like "no need for you to become human, I like you as a witch"
Then when Daleth complains about living longer than him, he'll go "I REJECT MY HUMANITY" and somehow become a witch.
I doubt he knows about Lucas (it doesn't seem like knowledge of his existence has spread beyond the palace; currently, the master of the tower is still AWOL).
That being said, even if Lucas is known about, it could be entirely possible that Anastacius still believes he has some measure of...
I mean, a solution to the 682 problem could very well be "stop trying to contain it and stop caring."
A terrible solution. But a solution to the problem of trying to contain it nonetheless. You just to reframe it so that it's no longer a problem.
I feel like Addie knew about the game somehow even before she did and is working against her by changing the very premise of the world to prevent her from her end.