First off, I'm really happy you're enjoying it. Yes, a lot of stuff is being actively worked on. Here's what's coming. Next release 1.2, all the Slattern's girls will be on iFuq. All of that stuff is already written, and ready to ship. There'll be at least a couple new story events as well: five are already all done, and a sixth in the works. We'll probably ship two, along with maybe Night Beach Sex. We're also going to roll out the ability to open a map view of the school, so you can move around inside easier.
More important, I'm working on getting iFap events written for the next six girls (Gia, Liza, etc.) I've got Aya's done, working on Gia's now. The repeatables are always the most time-consuming, because I have to write 6-8 variants per event (and then have to cook up the Achieve art and whatnot, too.) My goal is to ship all six of those iFap events for 1.2; we'll see how that goes. It's already the middle of July. After that, it'll be time to focus on iFuq for those six girls as well; that will (obviously) take a bit. And I'm traveling for work in August, so... That's kinda where things stand at the moment.