Premiering Oct 4, 2014 there will be a new Fate/Stay Night anime done by Type Moon + Ufotable.
The Anime will be a split cour so 24 episodes. The first 12 will all be this year while the last 12 will be next year.
It's going to cover the Unlimited Blade Works arc, and I believe its been said there will be some original content in the anime as well. Ufotable is also going to be making a movie(s?) to cover the Heaven's Feel arc.
Heaven's Feel PV01