Since James Brown passed away in 2006, no one has stepped up to claim the title of “The Hardest Working Man in Show Business”. However, it looks like Joss Whedon may be stepping up to the challenge. His horror movie ‘The Cabin in the Woods’ premiered at the South By Southwest Film Festival, ‘The Avengers’ is ready to hit theaters in May, and he’s preparing ‘Much Ado About Nothing’, which he shot on a break from filming the Marvel hero team-up flick, for the festival circuit. Lost in all that awesomeness, however, is the long-awaited, much-anticipated sequel to his hit award-winning internet musical, ‘Dr. Horrible’s Sing-Along Blog’.

In an interview with Wired to promote ‘The Cabin in the Woods’, Whedon said that it’s been hard to work on the sequel to the supervillain musical because of the amount of work he’s had lately, but they “do have a number of songs written” and an outline for the next miniseries. Now it’s just a matter of getting everyone’s schedules to sync up. He said:

“We’re stuck, basically, at this one part in the process. All of us are looking at this summer as the time when we can go, ‘Hey, you know what? We’ve got a little free time, let’s get unstuck.’ Neil has been like, ‘How long?’ We’re all sort of just waiting, but the waiting will stop.”

There you have it. After about 4 years, we’ll finally get to see more of Neil Patrick Harris’ Doctor Horrible take on his nemesis Captain Hammer, played by Nathan Fillion.

Whedon created the original ‘Dr. Horrible’ with his brothers Jed and Zack, and Jed’s wife, Maurissa Tancharoen, during the 2007-2008 writer’s strike. It told the tale of a wannabe supervillain who wants to join the Evil League of Evil and win the girl of his dreams, Penny (Felicia Day), despite constant meddling from his arrogant, goody-goody rival. Shot quickly and on a low budget, it was released online in three parts and spawned comic book spin-offs before being released on DVD.