I think in development you can declare final when you think the main content is finished, in this game then the ending of main characters. It's also meant the developer won't introduce another big update or more content/feature, only finishing touch so with his versioning if 2.65 is latest he definitely wont go for 3.x where the version should meant the dev introduced something new, but maybe only go from 2.6x or just closure of 2.7 with some finishing touch
The thing is this game has quite lots of women to corrupt and no wonder everyone expect that each woman that meant to be corruptable at least has somewhat equal amount of content between each main and each side characters
Tho I still hope the dev will consider adding option to keep the woman look. I don't mind the costume and attitude change, but the make up really throw me off. The corrupting is fun but for me this "corrupting equal uglification" is what kept bother me to actually back to play this game. But hey, if you are into that make up and thing, no offense.