To be honest, this update just confirms how stale the game has gotten. There's just no emotional variety.
It is the nature of NTR games, there are not that many possible variations.
MMC perspective - does he know yes/no, is he into it yes/no , does he fight back yes/no
For FMC - is she into it yes/no/gets corrupted over time, fights back yes/no, one partner/multiple partners,
There are some smaller things like - who is the perpetrator, who is guilty, extra actors but for most part NTR endings are combinations of the above.
In my opinion it is best to not overdevelop NTR games because as the endings gets knocked out the excitement for future ones diminishes because we realize the formula.