Are there any announced plans for Azyrran and and Etheryn? Not together just in general. Other characters clearly have stuff in the works, berwyn's sub stuff, brint/brienne in mino land, asking if cait is getting content is asking if the skys blue.
I am just going to say wider strokes of what you should expect. Not everything here is 100 percent happening.
Atugia- She just got 2 small batches involving her. She will also have new Berserker outfit/maybe TF. Further than that I do not know.
Azy- Have no Idea, if someone has, tell me. Only thing I know is that no corrupt hive route.
Arona- Her whole deal is making her a better leader to her tribe. Expect if you exile here. If you do that, you could probably control her in a lot of fun and interesting ways (no dedicking) as componsetion for lacking in Orc camp.
Cait- every month something new. She will have Khor minos related TF where she will get big by blowing bunch of dudes.
Berwyn-Along with TFs, different romance routes. Along with him/her (his pronouns will probably be charged if he gains a pussy), you will be able to interact with new Salamander girl and his/her master. Their master may also have different routes such as becoming Berwyn lover/slave, putting her in wayfort and you maybe could also TF her.
Brint- Tied to Khor minos. Major thing with him, besides added dialogue and sex scenes will be meeting his family, optional harem route (where he gets a harem) and marriage.
Brienne- Same stuff as Brint minus harem route but plus incest with her sister (with lezdome content). Some revelations about her curse.
Etheryn- Besides continuation of her 2 and a half routes (lover, slave and a friend) a lot of her content will be tied to her being a ruler which also means you being her vassal. You can also support here in different ways/influence her. She can become the queen, keep being a Reagent or you can use her as a puppet. Her sister, who is located somewhere near/in Khorminos will also be involved in it.
Kiyoko- A lot of her content is tied to Kinus quest aka, Kinu is getting it. But she still gets content in form of special events.
Quint- He has 2 expensions. One is comming soone. It is related to him having daily such as going to the gym. You will get to join him. Second will be much larger expansions. Current status on it is unkown but it is related to his relationship status in some way. He is also getting a GF if you build the temple.
There is also up and comming Einen. You can read all
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In short:
-Mouse waifu
-Virgin
-Her personality and sexual expresion can be molded by the player (all for you and your use, free going girl, submissive to bone/more than she already is)
That is all I can remember.