Years Later, Captain Sisko's Saddest Quote In DS9 History Was A Promise Star Trek Couldn't Keep

Captain Benjamin Sisko’s final words in Star Trek: Deep Space Nine were designed as a promise, but they’re remembered as something the franchise couldn’t deliver. In the 1999 series finale “What You Leave Behind,” Avery Brooks’ Sisko tells his wife Kasidy Yates that he’ll return—“Maybe a year. Maybe yesterday. But I will be back.” The article notes that DS9 ended with no canonical continuation, and while there were discussions of a Deep Space Nine movie, they never materialized. It also points to later canonical updates arriving decades afterward on Paramount+ shows, with only limited appearances.