sidequel
n.— «Sidequel (Side Story)—A sidequel is a neologism describing a work of fiction in literature, film, and other creative works that is produced after a completed work, set in the same “universe,” with arbitrary chronology and unrelated plots. The word is a portmanteau formed from side-, as in side by side, and sequel, a work which takes place after a previous one. The term may well be synonymous with Spin-off.» —“The Big Screen Bulletin 12.04.06: Jingle Your Bells With The Bulletin” by Chad Webb 411mania.com Dec. 4, 2006. (source: Double-Tongued Dictionary)
Further reading
Shipping characters in fiction in ways the original author didn’t intend — picturing them in new non-canon relationships — goes back at least as far as so-called slash fiction or slashfic, a type of fan fiction involving same-sex romantic or...
Many of us struggled with the Old English poem “Beowulf” in high school. But what if you could actually hear “Beowulf” in the English of today? There’s a new translation by Maria Dahvana Headley that uses contemporary...