Just a few suggestions/notes.
Topless/Skirtless/Panties-less (maybe even eventually nude) uniforms would be awesome, options for different coloured uniforms would be amazing, maybe some with tights/pantyhose. Black, tan, white, sheer, striped, white with little hearts on, there's so many options. Maybe even an editor for the girls, so you can change their height, breast size, eye colour, hairstyle/colour... you know all those customisation things (which would be a hell of a lot of work). I understand this game is a work in progress, and i am yet to contribute anything monetarily, but i have been playing this game for a very long time now and i still cant get enough of it.
I wonder if we will ever get a dungeon/playroom type thing, in which a student can be bound and kept, feeding, watering and exercise could be manual or automated. Maybe there could be another location added, new locations mean new events which would inevitably add to the mountain of work the developers have to get through, and we all appreciate them for it. I have plenty more ideas too! This game has so much potential.