During this afternoon’s Marvel Studios panel at San Diego Comic Con, the title for the upcoming Avengers sequel was revealed.

The movie will be called The Avengers: Rise of Ultron, according to the Hollywood Reporter.

Director and writer Joss Whedon revealed the news at the end of Marvel’s panel, which included Tom Hiddleston firing up the crowd to chants of “Lo-ki, Lo-ki, Lo-ki” and sneak peeks at several upcoming Marvel Studios projects including Thor: The Dark World, Captain America: The Winter Soldier and Guardians of the Galaxy.

Whedon showed the audience footage of various characters from the original film having a conversation around a metal object that could have been Cap’s shield or Iron Man’s helmet.  A pull-back reveals that it is, instead, the head of Ultron, who will serve as the villain in the upcoming sequel.

The revelation of Ultron may also reveal how Ant Man figures into the on-going Marvel Studios universe.  In the comics, Ultron is a creation of Dr. Henry Pym, aka Ant Man.  Ultron rebels and tries to take out Pym, leading to the creation of the Vision.

The panel was packed with details on the upcoming Marvel projects that had fans in a frenzy.

Chris Evans, Samuel L. Jackson, Scarlett Johansson, Sebastian Stan and Anthony Mackie were on hand along with directors Joe and Anthony Russo to tease the upcoming Captain  America sequel.  The Russos said the film has a “70’s vibe” to it and that it will include an appearance by actor Robert Redford.

The cast for Guardians of the Galaxy also took to the stage to build excitement for the film’s release next summer.  A montage of clips from the film were shown since production began 12 days ago.

The footage also offered the first glimpse of the cult favorite character Rocket Raccoon, a diminutive rodent with an attitude that will be created by CGI in the movie.