Well, already bursting with a lot of new suggestions, but since you stated you're quite busy bringing up a new version, I'll just expand upon 18) and partly on 17).
You probably noticed that Adaptive-Migratory habitat suggestion. What I meant there is that there might be a certain number of monsters that in terms of stats/powers/power strength to cost ratio would be a cut above the ordinary ones, but acquiring them would be trickier, because every time you rest, they would have quite a high chance of migrating to another region. So actually encountering them would be quite much based on luck. Owned and garrisoned territories would help a bit in that regard, as you would get a message about a previously not encountered species having been spotted in the region. In that term there could be a typical habitat followed by Migratory flag - if a monster preferred certain habitats. Or Adaptive if a monster could be encountered in any habitat in the region. When you rest, an Adaptive-Migratory monster might just as well switch region as habitat within a region.
Also, perhaps instead of encounter=100% pregnancy and 3xbonding=pregnancy I think it would be better to issue some kind of percentage chance to both with a slightly higher chance on bonding (except for the very first encounter during Prologue which would be 100%). This percentage would vary upon monster species which would help make more powerful monsters more rare. Also... well... I really like that picture of Lilith laying on the ground, cum-covered after the encounter in Prologue. Perhaps you could include it to every encounter? Plus a bit expanded version with Lilith laying alongside the monster for the final line of further bondings. That would be... tasty. I'm also a little disappointed with no narrative for first encounters with other species - they definitely should be there. For what I've seen the first bonding narrative actually has "encounter" flag where text is not applied yet, so maybe there's an error causing it to appear on bonding instead of first encounter.
And well, about that:
What I wish more is some mating pose ideas.
I could definitely help out with this, being a think tank kind of person. Also with narratives and graphics. Perhaps I could join the team? ;)