| ID | Description | Episode |
| 15 | This is a tricky one - although Bashir's meddling in the past prevents the formation of the Federation as so ensures that "Deep Space Nine" would never exist, it's quite possible that Terok Nor would continue to exist. This alteration would also presumably wipe out all the Enterprises, Voyager, etc. | Past Tense, Part 1 |
| Canon source | Backstage source | Novel source | DITL speculation |
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