Jon Favreau just updated his Twitter profile with the following:

Start shooting Monday. Last of cast has arrived in LA

That can mean only one thing… Iron man is on the way. The cast that he mentioned includes: Robert Downey Jr., Gwyneth Paltrow, Don Cheadle, Jon Favreau, Mickey Rourke, Sam Rockwell, Samuel L. Jackson and Scarlett Johansson.

Fans can expect to see Iron Man 2 next May.