First of all: Why would anyone want to switch off female characters' sprites? I mean, it's okay if you're gay but I don't remember the original nor this game shoving a nude female on your face, so please, be gay - not a jerk. Thank you so much.
Another thing: There is the revisited project, why in the hell would you want to play this game with the original sprites? First of all, using those sprites could cause a lot of trouble and I don't want to think of what legal issues would rise with it either.
About the changes: I love it. Depending on how your script works, it's easier to change certain descriptions for human/fox if the game has a tag for it to be changed, of course, if a project is not done with this in mind, it's very boring job to do. And long too.
I will say this though: I'm split between happy and not so happy about the porting for the routes of the Revisited script, first because there is some elements on the original story that is hard to pass by, but second, because I was expecting certain routes to be re-done, such as Kouya for example, and Shin too. Kouya because his character story is very good but his route since it was one of the first they've done in the original game, is not as complex or huge to play with.
But I'm also kinda happy because if you guys feel you just need to port the original scripts here, it means this game will be finished faster, right?
I still wish you guys do write some new things and change a few aspects of some of the original routes because, in the end, I am here for the nostalgia but also for the new content too. If I want to just revisit the old routes I could do it on the original game, right? So yeah, I hope you guys do change a few things, but if not, it's fine too, after all, I'll be enjoying the end content anyways. Just don't go canceling this project before releasing the routes that we never received in the original game, please.