"While the Lost series finale has already aired, the story isn’t completely over. Lost fans can look forward to a bonus 12-14 minute epilogue on the Lost Complete Series DVD set....

If you’ve watched the Lost finale, then you know that Hurley took over as the guardian of the island, and asked Ben to help him out with his experience and knowledge of the mysterious location. Years later, in the moments “after life,” Hurley thanked Ben for being his #2 while entering the church — a tease of Hurley and Ben’s years protecting the island. Believe it or not, this storyline has actually been filmed, and will be released as a 12-14 minute epilogue on the upcoming Complete Series box set.
Michael Emerson told Attack of the Show:

"For those people that want to pony up and buy the complete Lost series, there is a bonus feature, which is…you could call it an epilogue,” explained Emerson. “A lost scene. It’s a lot. It’s 12 or 14 minutes that opens a window onto that gap of unknown time between Hurley becoming number one and the end of the series. It’s self-contained, although it’s a rich period in the show’s mythology that ‘s never been explored, so who knows what will come of it."