The actor - who played Ben Linus on the show - admitted to IGN that the 12-minute mini-episode, available on the forthcoming DVD boxset, hints at further adventures for Ben and Hurley (Jorge Garcia).
"It does seem [like a spinoff]," he explained. "It leaves the door open that way."
However, he denied that the writers who worked on Lost were actively developing a spinoff project.
"I don't think it was their idea to leave such a door open," he said. "And, of course, those writers will never convene again on this material and this cast will never be all in the same place again. But who knows?"
Emerson previously confirmed that the epilogue would be "lighter" than the series finale.
The final season of Lost will be released on DVD and Blu-ray on September 13.