Personally, I'd like a focus on the interplay between the characters where they act as appropriate given the time setting. Using the adversities and such to fuel the various issues they will have to handle.

So, as for possible situations that can fuel such interesting interplay could be for instance, I don't know, someone get caught cheating on a test? Or perhaps some of them fool around with lovers of friends? Perhaps the principal and the director is about to retire, and uncertainty of the future of the school boils on them? Perhaps a family member of a character perished? Things like this that almost form a drama-esque story, be it cliche or not, yet wihich maintains focus on the characters themselves.

Kinda like how the interplay between Maya and Nadalena was set up in the previous RP... despite never flourishing to be. But you get the point, I hope.