Sequel vs. Prequel

Something that follows as a continuation, especially a literary, dramatic, or cinematic work whose narrative continues that of a preexisting work.

A literary, dramatic, or cinematic work whose narrative takes place before that of a preexisting work in the same series.

A result or consequence

(narratology) In a series of works, an installment that is set chronologically before its predecessor, especially the original narrative or (perhaps improper usage) any narrative work with at least one sequel.

(dated) The events, collectively, which follow a previously mentioned event; the aftermath.

(narratology) A narrative that is written after another narrative set in the same universe, especially a narrative that is chronologically set after its predecessors, or (perhaps improper usage) any narrative that has a preceding narrative of its own.

(mathematics) The remainder of the text; what follows. Used exclusively in the set phrase "in the sequel".

Thirlage.

(obsolete) A person's descendants.

That which follows; a succeeding part; continuation; as, the sequel of a man's advantures or history.

Consequence; event; effect; result; as, let the sun cease, fail, or swerve, and the sequel would be ruin.

Conclusion; inference.

Something that follows something else

A part added to a book or play that continues and extends it