retcon
v.— «I’ll confirm that: Lucas retconned the opening credits after the release of TESB, once it was clear that the films were doing well enough that the first set would be completed. Had SW bombed, no one would have known the plans for a set of nine.» —“Re: A New Star Wars Film?” by Robert Halloran Usenet: rec.arts.sf-lovers Aug. 16, 1989. (source: Double-Tongued Dictionary)
Further reading
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