'Ultron' Conquered: Joss Whedon Wraps 'Avengers' Sequel

And now, we wait.

Even if Earth's mightiest heroes can't defeat their new robot aggressor, at least director Joss Whedon has finished one crucial phase of the battle against Ultron.

On Twitter, Whedon announced that at long last, production has wrapped on "Avengers: Age of Ultron," the upcoming Marvel Studios blockbuster that brings Iron Man, Captain America, Hulk, Thor, Black Widow and Hawkeye back together again, along with some new friends and foes — including super-powered siblings Scarlet Witch and Quicksilver, the android Vision, and the titular cybernetic overlord, Ultron.

With production wrapped, Whedon faces a very difficult question: "What the Hell do I do now?"

The answer seems obvious: "Much Ado About Nothing 2." Or "Serenity 2." Or "Buffy the Vampire Slayer Season 11." Or take a nap. Really, anything Whedon wants to do, we're on board.

But he should probably think about editing "Age of Ultron" somewhere in there, too.

"Avengers: Age of Ultron" hits on May 1, 2015.