After Gately's final line, MS-1993 adds outline notes for unwritten chapters…
This is planned-but-unwritten material: it appears in outline or margin notes but was never drafted as a scene.
In the published book. This material does not appear in the published book. Published shadow = Gately's fever/wraith material (scene 185 pp. 972–981 and the hospital strand)
Evidence. A single source reports this. Documented by Steven Moore's first-draft collation.
Bears on. This difference bears on the following open questions: what happens between p. 981 and p. 3 (the Annulation-Text); does Gately survive the hospital / what the beach scene is; did Hal ingest DMZ, and by what route (dosed / endogenous / self / none).
Further notes. The closest thing on record to Wallace's plan for the missing year: Hal–Helen contact, the Exhibition, Pemulis administering DMZ, Gately–Joelle, and an eyes-sewn-open viewing-torture matching what the published book renders as dream/threat imagery. Whether outline = canon is an adjudication question, not one this catalog of differences settles; Burn's caution (next block) applies here too. Independent Dec-1994 echo of the mirror device: Pietsch's query on the ending region, "1603 What are pieces of room oriental guys are bringing in? Mirrors so Fackelman can see himself being tortured?" Michael Pietsch's December 1994 second-read letter — an editor guessing mirrors at the ms-1603 ending; whether print's Fackelmann ending stages mirrors is print-check item 13.