I was thinking about an idea I had of having a campaign centred around a community, but having the cast of Players change every so often. The community centric focus is to tie various PCs together while at the same time allowing them to have their own stories. You'd have a short story line that lasts a handful of sessions, the switch out a couple PCs for different players and characters, then pursue a different storyline in the same community. I was thinking Apocalypse World for this since it is fairly community centric and handles PvP conflict well. I was also considering The Quiet Year for creating the community and the initial conflicts.
It could give players who can't commit to a normal campaign but want more continuity than a one shot exactly what they need. It could also give noob GMs a chance to try out the role in a setting everyone is familiar with, AND possibly let Forever GMs take a break.
Has anyone ever tried something like this? Or had a large enough player base for it? Or just any thoughts on how this might work?