As it can be read in Showtime's press release, dating from February 2, 2006:
"On the heels of a year highlighted by industry recognition and critical acclaim for its award-winning original programming including Weeds, Huff and Sleeper Cell, Showtime has ordered a fourth season of its hit drama series The L Word, it was announced by Robert Greenblatt, President of Entertainment, Showtime Networks Inc. [...]"
This new season will have 12 episodes, and will air early on 2007. It started filming in Vancouver on May 29, 2006
New cast members have been announced for the new season. Showtime has revealed the addition of Academy-Award-winning actress Marlee Matlin
three time Golden Globe winner Cybill Shepherd, Kristanna Loken, and Janina Gavankar to the cast. As well, Karina Lombard will reprise her role as Marina Ferrer for a few episodes in the beginning of the season.