According to the songwriter of the program, a sequel to the stand-alone short film Dr. Horrible’s Sing-Along Blog “will exist.”
In a statement to EW, Jed Whedon, brother of The Avengers director/screenwriter Joss Whedon, said, “DH2 will exist, in some format or another, at some point in the future.”
However, a man’s gotta do what a man’s gotta do, and for the Whedon brothers, that includes concentrating on massive current projects, like Joss’ The Avengers: Age of Ultron and Jed’s Agents of S.H.I.E.L.D..
“We have many songs written and the plot outlined, but needless to say, we’ve been busy. Joss has had a hectic couple of years and is in the middle of the busiest year of his life, as is Zack and as are we,” said Jed.