The beloved 2004 sitcom was revived for a new ten-episode season last year, to be streamed all at once on Netflix in 2013.
Producer and narrator Ron Howard tweeted a picture of the first new script, which is entitled 'Arrested Development: Michael'.
Howard wrote of the episode: "Very very funny :-) Lots of lines for the narrator too!"
This title, which refers to series protagonist Michael Bluth (Jason Bateman), supports previous reports that each new episode would focus on a single character.
Arrested Development, which centres on a dysfunctional family in California, was cancelled in 2006 due to low ratings, but has since attained cult status.
All of its stars including Bateman, Will Arnett, Portia de Rossi, Michael Cera and David Cross, are set to return for the new episodes, which will culminate with a movie.
Watch Bateman discussing the movie with Digital Spy below: