Saw VI Release date -- plus script for Saw VII in the works.

There will be a 6th installment of Saw. Jigsaw will be carried on by writers Marcus Dunstan and Patrick Melton, -- not only for the 6th installment, -- to those who thought saw VI was the final cut; There will also be a 7th installment. Saw VI is currently in post-production in Toronto Canada and will be released, October 23, 2009. Kevin Greutert will direct the movie . Jig saw will return as Tobin Bell, Costas Mandylor (Mark Hoffman) will also return; among the cast members Tanedra Howard the winner of vh1’s scream queens -- who won a part on saw VI.

Plot as released by lionsgate: “Special Agent Strahm is dead, and Detective Hoffman has emerged as the unchallenged successor to Jigsaw’s legacy. However, when the FBI draws closer to Hoffman, he is forced to set a game into motion, and Jigsaw’s grand scheme is finally understood.”
There is no trailer available for saw VI as of right now. Saw VII will also include the same writers; they have been the writers for saw IV, V and VI. Saw VII will be released in October of 2010.

Update: for Trailer and official poster refer to this post.