The 2004 release of the zombie apocalypse comedy "Shaun of the Dead" marked the arrival in the states of three great new talents, director Edgar Wright, and his co-writers/star Simon Pegg and Nick Frost. In 2007 they gave us the delightful serial-murderer thriller "Hot Fuzz," and have since promised a third installment in their "Ice Cream Trilogy," so named because they eat Cornetto ice cream in each film.
Yesterday came a glimmer of hope for the third film, in the form of a tweet from Wright, "hard at work," accompanied by the following photo:

We're not sure what exactly has been the hold up, but it's likely the fact that all three men have enjoyed quite a bit of success since "Shaun," with Wright making the overlooked "Scott Pilgrim vs. The World," Pegg landing roles in "Star Trek," "Tintin" and "Mission: Impossible - Ghost Protocol," and Frost re-teaming with Pegg for "Paul" and "Tintin," as well as "Attack the Block."

Wright is currently working on Marvel's "Ant-Man" movie, which is due in 2014, so it's doubtful we'll see much of "The World's End" before then.