User blog comment:AdventuringStar/Season 6 Release Date/@comment-32390199-20140108114524/@comment-24003411-20140110081034

Nah, PB and Finn are supposed to get back together in Series 6, and development of characters has arisen since Series 4, so we may see a few well known characters return, but as I explained to FinnAwesome, I highly doubt that Mannish Man will return, so some characters, may NOT return.