We have a fairly solid plot outline and scene list for about the first year of the story, and a big brainstorm cloud of ideas for where to continue from there. Plans always open to change though.
There's a lot of sorority politics, Terri will continue causing trouble. There'll be opportunities to explore deeper romantic connections with some characters, either explusively or polyamorously, though it is always possible to stay single. If you're on the Max casual dating path, he will eventually want to define the relationship. Soraya is coming back, her exit disappointed some people so I always assure now that we're not done with her, and she'll get the chance to overcome her shyness a bit.
I think the kind of sex scenes we already have in the game largely set the tone for how the nsfw side plays out, though we are holding back some stuff. For example we have plans for some heavier bdsm content which we're holding for when a stronger and more trusting relationship has been laid down (though you can start building the foundations for those by domming Max or subbing for Alissa in the current scenes). And those poly-ships I mentioned open the door for group encounters, of which we currently only have one.