Alright, i went over Kenko's Patreon again and checked his diaries about the progress for the RPG plus went trough the demo again.
let's talk about kenko's development process first, from what i could gather, the next version of the RPG had to be delayed, drawing the pictures of the various monsters isn't a huge problem, and they are nearly done with that part. but the Text and dialouge is what they are struggling with. doesn't surprise me really, writing that much text is taxing.
in other post he talks and shows drafts of various Monstergirls which i assume are monsters he hopes to include in the game, among them are: Ghost, Trumpart, Beelzebub, Mimic, Werewolf, and Satyros.
there are also certain things he said he wanted to add to the RPG down the line, things like: An item catalog (so you have detailed explanations of the various stuff you find) Normal Combat (probably against wild animals or those Nutjobs from the Order, which also serves as another way to level up your Monster Girls) and a Cooking system (with a catalog to read about the ingredients and dishes you found and eaten)
also played the demo again and checked out what happens when you fail to fill a monsters love meter before you do, once the scene is over you get 2 choices, either try again, or give up, upon which a cutscene will play what happened to you before waking up in your home. dunno if this will be changed to a "return to title" in the full game, but i prefer it like this, just right back into the action, giving you time to better prepare for it.
Edit: Part 2 since i don't want to make a new post each time i have something new to say. anyways, i've been thinking about the "normal Combat" part and then it hit me, if kenko manages to add normal battles, that immediatly implies the inclusion of monsters like the Lizardman, Salamander and Ogre since all 3 of them seek their husband by their fighting-ability, it also implies that stronger Monstergirls to join our harem would appear much later in the story, i mean who do you think would win a arm-wrestling match? a werecat or a hellhound? also i hope i get to see at least one NPC or something running anywhere, followed by a lizard going "You best me in battle, now marry me damnit!" or even better, a salamander loudly declaring how sexy their soon-to-be husband is while running after that guy.
otherwise, considering the sprites in-game, i'm pretty sure we will also get a succubus, wererabbit and that tanuki soon enough, their sprites are already in the game, all they need is a portrait and sex-scenes and done. disregarding the tons of text that will be needed in such an event. and speaking of sex-scenes, when i played the demo again, the imp did something that didn't happen the first time i "fought" her, she charmed me and my character acted on his own, so if kenko wants to add a bit of challenge to the game, that cooking feature should be put to good use to make sure our character is capable of resisting the alluring nature of all those lovely monster, at least long enough to get her love meter to 100 before we do.