ufotable, the studio who adapted prequel Fate/zero, will be revisiting the families and Grail War a generation later in Fate/stay night anime. Timed well to get the otaku flocking to Comiket 85, a site and promo video have been launched.
Volume 9 of Type-Moon Ace, due in January, is teasing more information about the project. The prominence of Saber in the image is having fans speculating on an adaptation of the "Fate" route of the visual novel, rather than the previously assumed Heaven Feel.
Earlier NewType teaser
From ufotable's work on Realta Nua