Yeah, I got asked a similar question before, but didn't really give an answer, so here goes. The futa girls in the game are technically just dick girls and that is going to be their state for the most part, because it's easier to do gameplay-wise. However, in the future I want to implement a magic system into the game that will allow the player to transform the NPCs' bodies and this should include the ability to transform the dick girls into proper futa characters.
Sorry for using the term in a somewhat confusing manner, but I use the futa tag since it's easier for people to find when browsing tags on different websites.