I would have much preferred this ending than that they did on the show. This is a little fuzzy but you get the idea.

from wikipedia:
The final episode was in fact intended to be an end-of-season cliffhanger, but after the series was not renewed by the network, it was re-edited to function as the series finale. This may account for some of its ambiguous nature. The original ending had Sam leaping to tell Al's first wife, Beth, that Al was coming home. His Vietnam-era picture begins to "leap" (this is where the final episode cuts off), and then we see a modern picture of Al sitting with Beth and their four daughters. This ending somehow made it out of the studio and has been circulated on the Internet. In the ending that was actually broadcast, we are told that Al was reunited with Beth, that they remained married, and that "Dr. Sam Becket [sic] never returned home." Fans have speculated that this would have erased Project Quantum Leap, Sam and Al's relationship, or even Sam himself from the altered timeline; however, the original script and subsequent statements by Bellisario leave all of these intact.

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