Fate/Stay night Unlimited Blade Works is the second senario of fate/stay night, reveal the true identity for Servant Archer, and his whole battle.
The Lastest installment of Fate Series is "Fate/Extra", Altered universe of fate/stay night, were most of the servant and master are different except lancer, saber, Archer, Matou shinji & Touhsaka Rin:-). Fate/Extra is a psp game just release this march, that have a persona theme like game.
well that all for now.... I expect more Fate Series in the near future.