User blog comment:Adventure Time Noob/Season 4 of Adventure Time confirmed!!!/@comment-1784834-20120221014513

We'll obviously be seeing more Flame Princess, and more about Marceline's past (namely about her thing with PB), Magic Man is coming back (I hope we also see Donny and NEPTR again), we might be seeing another Fionna and Cake episode (this time with Marshall Lee), and we'll be seeing Glob.