Hmm, one of the school trophies has gone missing and its up to a particular team to find it?

Moving in day/meeting R.A.'s? Practice session or team meeting?

Well at this point it's summer so a summer vacation event should be in order.

Give a prompt for the writers to write a story and a background for all of the artists to draw their characters on for a beach vacation or something of that sort.
And then in September go a back to school event where everyone either writes their characters coming back to school and either being happy or sad that summer is over and the artists can draw their characters in cute back-to-school outfits.

October can obviously be a halloween event. Everyone in costumes or stories about things they did for the holiday.

December can be Christmas/whatever holiday the characters celebrate that year. Perhaps a misteltoe picture for all of the couples. There can be an on-campus holiday party that everyone can either draw themselves into or write themselves into.

One event a month would really be great to try and keep everyone interested. Not going to lie a lot of us keep forgetting the PCA exists because nothing's happening.

Inverse battle class. Or perhaps a field trip to the sinjouh ruins, or perhaps a day for foreign exchange students?

School dance/teen drama.