Capital C, the advertising company of the Season 5 DVD, contacted Lostpedia the other day to announce they're releasing sneak peeks of the DVD up until the beginning of Season 6!
The videos will be posted at this thread on the Lostpedia Forums, where you can also discuss their contents.
Here's the first one, where Darlton and cast members discuss the implications and reasons for Jughead exploding. (Like anything posted on Lostpedia, spoiler-free)
Courtesy of Buena Vista Home Entertainment. ©ABC Studios.