LogFAQs > #925761690

Fittingly enough, the final trope is Grand Finale. Here is the link: https://tvtropes.org/pmwiki/pmwiki.php/Main/GrandFinale

When a show (usually of the Failure Is the Only Option or Stern Chase variety) comes to an end with sufficient lead time, the production team may decide to go out with a bang by ending the endless chase, destroying the undestroyable foe, or in some other way definitively and permanently changing the core axioms the show depends on. It usually resolves all the conflicts that have driven the series over its entire run, and offers some kind of resolution to the dramatic tension that they have powered.

This is the Grand Finale, a way of very clearly saying to the audience "Okay, the show is really over. There's no more. Go watch something else." (That this doesn't always get through to viewers can be a problem in and of itself...)

TL,DR: The definite, absolute end of a series.

Nominations:
Whatever Happened to the Caped Crusader? (Batman)
Metal Gear Solid 4
Logan