History Main / SequelHook

* ''WesternAnimation/PussInBootsTheLastWish'' ends with Puss, Kitty, and Perrito visiting the Kingdom of Far Far Away, setting up a possible reunion between Puss and WesternAnimation/{{Shrek}}.

* In ''WesternAnimation/FrozenII'', Olaf asks if the whole "putting us in mortal danger" thing is going to be a regular occurrence, but Elsa just laughs and says "[[DefiedTrope No, we're done.]]"

* ''WesternAnimation/ToyStory1'' has "wow, a puppy!" ''WesternAnimation/ToyStory2'' has "worried about Andy?" ''WesternAnimation/ToyStory3'' [[https://www.youtube.com/watch?v=t51XXAEnnbs avoids this]]. Even so, there was a '' WesternAnimation/ToyStory4''.

Compare TheEndOrIsIt, HereWeGoAgain, TheStinger, AndTheAdventureContinues, ToBeContinued, SavedForTheSequel, SequelSnark and WillReturnCaption. Can occur as part of InescapableHorror. Obviously, '''many unmarked spoilers ahead'''.

* The ''Manga/FullmetalAlchemist'' manga averts this to the point where it seems like the writer was literally trying as hard as possible to prevent any possible sequel or need for a sequel. The [[Anime/FullmetalAlchemist 2003 anime version]] on the other hand ends with Ed getting ready to do another transmutation to get Al back by sacrificing himself. The ''[[Anime/FullmetalAlchemistTheConquerorOfShamballa Conqueror of Shamballa]]'' movie fittingly picks up a short time after the hook, with Ed stuck in the "real" world after his transmutation was successful.

* ''WesternAnimation/DannyPhantom'' with the episode "WesternAnimation/TheUltimateEnemy", where the BigBad is shown to be contained, but not entirely defeated, as he was trying to bust out. The series ended before the writers could actually make good on that story thread, however.

* ''Literature/TheMouseWatch'' has one in an epilogue. We're introduced to [[GreaterScopeVillain Kryptos]], the mysterious leader of [[NebulousEvilOrgnization R.A.T.S.]], who says that he anticipated the failure of [[BigBad Dr. Thornpaw]]'s EvilPlan and is ready to launch another scheme.

* ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'': "Attack of the Twonkies" ends with Jimmy realizing [[SomethingWeForgot he never sent Sheen's Twonkie back]] (which never mutated due to Sheen's [[HollywoodToneDeaf bad singing]]), which reproduces and its offspring hop into Retroville.

* ''LightNovel/{{Slayers}}'':

* Blatantly lampshaded in ''LightNovel/{{Baccano}}'', when the two {{Meta Guy}}s Carol and Gustav argue over [[LeftHanging why some plot threads are left untied]] (such as a scene in the first episode that never gets referred to again. At least in the anime...). Carol's answer? Sequel Hook.

* In the final episode of ''LightNovel/HighSchoolDXD'', Sirzechs and Grayfia were discussing about how the Red Dragon Emperor ([[TheHero Issei]]) is now part of the devil society. It seems they were happy about Issei crashing the wedding until Grayfia mentions that the Vanishing Dragon will make his appearance. Cue the second season of the anime.

* The Franchise/PlanetOfTheApes and LightNovel/CatPlanetCuties {{Crossover}} fanfic [[FanFic/PlanetOfTheCats Planet of the Cats]] ends with the possibility of exploring more of the titular world beyond where even the Catians have gone.

* ''WesternAnimation/DannyPhantom'' with the episode "The Ultimate Enemy", where the BigBad is shown to be contained, but not entirely defeated, as he was trying to bust out. The series ended before the writers could actually make good on that story thread, however.

* ''LightNovel/{{Slayers}}''

* In the final episode of ''LightNovel/HighSchoolDxD'', Sirzechs and Grayfia were discussing about how the Red Dragon Emperor ([[TheHero Issei]]) is now part of the devil society. It seems they were happy about Issei crashing the wedding until Grayfia mentions that the Vanishing Dragon will make his appearance. Cue the second season of the anime.

* OlderThanFeudalism: In ''Literature/TheOdyssey'', the prophet Tiresias tells Odysseus that he must make another journey after returning home, but this was not followed up on by Creator/{{Homer}}. That journey only appears in the lost ''Telegony'', the last epic of the Literature/TrojanCycle.

The original work still has closure but, by [[WhatHappenedToTheMouse leaving minor plot elements unresolved]], the writer has made writing a sequel easier. If the audience demand is there, they'll be ready. In fact, this method is so common the audience will identify ''any'' unresolved plot element or any ending short of HappilyEverAfter or KillEmAll as a hook. Sometimes the hook was just that, the writers are not sure which direction they would be going in the later work.

** ''Kiawe Interlude'' ends with Capriccio and Naps preparing for the full-scale Alola operation and Capriccio planning to capture Darkrai for Team Cipher in exchange for help finding and [[KillEmAll killing all his nieces and nephews]].

* ''Machinima/GamingAllStars'':

** Also from the finale, as Bill is dying, he shouts out a phrase in backwards speech: AXOLOTL/HEY XOLOTL, MY TIME HAS COME TO BURN, I INVOKE THE ANCIENT POWER THAT I MAY RETURN. Interestingly enough, while this is a clear reference to Creator/AlexHirsch frequently responding with a picture of an Axolotl when asked, Xolotl is the name of the [[Myth/AztecMythology Aztec god of death...and]] ''[[Myth/AztecMythology twins]].''

* ''[[FanFic/EakinsHardReset Hard Reset]]'' dangles one of these by way of a CrypticConversation.

* ''Anime/PantyAndStockingWithGarterbelt'' ends with what is basically an UpToEleven version of this trope, with sudden, completely nonsensical plot twists thrown out left and right just after ''everything'' has been resolved. Basically, Stocking pulling a FaceHeelTurn and slices Panty into 666 pieces, and BigBad Corset pops out of Brief's penis (ItMakesSenseInContext, I swear) to tell Brief that if he wants to save Panty, he must follow the pieces to the next town and unlock the hellgate there. Your typical GainaxEnding, as it were, but taken to eleven.