On that note of the character being (temporarily maybe) shemale, is sissy content planned? Not mean/bad sissy stuff, but in general? After all, the protag is stated to be submissive.
Sissy content is usually sexualized feminization that includes:
- Normal feminization stuff - hormones, dressing up, etc - but at an accelerated rate.
- Chastity and maybe sextoys.
- Accepting that women having sex is normal, and by becoming a girl/woman the sissy having sex as a girl is normal. Usually stories portray this with a shock factor of someone close to the sissy having sex without them - girlfriend, girl friend, mother, sister, mistress, etc - but this doesn't have to be ntr. And this precludes the sissy having sex as a girl.
- Obtaining an ideally girlish body through extra means, such as yoga and pole dancing, changing one's diet, mastering makeup, normalizing paying for beauty upkeep like manicures, waxing, etc.
A lot of it is normal trans acceptance type stuff but with an added layer of things usually considered sexual. And the sissy is in a submissive role throughout.
Sexualized feminization currently exists in-game, and chastity and sex toys are both planned.
And "normal trans acceptance stuff but with an added layer of 'sexual'" is DEFINITELY a big theme of my game - although I plan to intentionally leave it up to the player whether the protagonist is specifically labeled as "trans" or not. :)
The "obtaining an ideally girlish body" is done by some sort of reality-warping-magic-sci-fi-shenanigans in my game, rather than the tropes you listed, but I think there's still a comparison to be made there.