If they do I hope they add more content to book 1, comparing it to any other book is just night and day. That or MITY adds more stuff to it.Honestly, you’re right. Ozai would have been the perfect candidate for Book 2’s Slave Route. Just my personal opinion, but the Slave Route for Book 2 was always one of my least favorites in the game. The Love Route for Azula is far superior.
I hope some ambitious person does make a mod of this game one day. I’d be one of the first to play it if so.