The 2005 Heidegger Studies lists the current state of the Gesamtausgabe and the English translations that are in preparation. They are:

18. Basic Concepts of Aristotelian Philosophy (1924)

27. Introduction to Philosophy (1928)

28. German Idealism (1929)

39. Hölderlin's Hymns "Germanien" and "Der Rhein" (1934)

52. Hölderlin's Hymn "Andenken" (1941)

59. Phenomenology of Intuition and Expression (1920)

66. Mindfulness (1938/39)

69. History of Being (1938-40)

77. Feldweg-Gespräche (1944-45)

  ¶ 9:35 PM