The upcoming Community movie has plenty of lingering series plot threads it needs to resolve. After years of waiting, it looks like Community is finally in a position to fulfill its “six seasons and a movie” promise. The sitcom follows a group of misfits whose various disappointments and shortcomings have forced them to join the student body of the eccentric and mismanaged Greendale Community College. The show, which first aired on NBC in 2009, has had a tumultuous history, involving multiple cancelations, cast departures, and the firing and subsequent re-hiring of its creator, Dan Harmon.
https://screenrant.com/community-movie-show-unresolved-plot-lines/