The man behind the biggest movie of the year will return for a second round.

"Avengers" writer/director Joss Whedon (also known for cult favorites "Buffy the Vampire Slayer" and "Firefly") has signed on for a sequel to the superhero blockbuster, which will reunite Iron Man, Thor, Captain America, the Hulk and more, according to CNN Money.

Walt Disney Company CEO Bob Iger said in a quarterly earnings call on Tuesday that Whedon has signed a three-year exclusive deal (meaning "Avengers 2" should arrive in 2015), which will also include producing a Marvel Comics-inspired TV series for ABC.

The network - also owned by Disney - has been eyeing its own "Hulk" TV series for years, but there's a good chance that Whedon would be working on a different show altogether.

Not that Whedon will only be playing in the Marvel sandbox. His Shakespeare adaptation, "Much Ado About Nothing," is set to make its debut at the Toronto International Film Festival, and a sequel to his Emmy-winning Web series, "Dr. Horrible's Sing-Along Blog," is expected to begin production next year.

Last month at San Diego Comic-Con, Whedon told CNN Geek Out, "It's kind of an exciting time right now, but it's an exciting time of me waiting to make sure I don't get so excited that I do the wrong thing."

For Whedon's legions of fans - old and new - a second "Avengers" movie probably sounds like exactly the right thing.