I didn't know it was even close to complete! I have 1 or 2 Teldec discs with Leonskaja (w/ D 959, I think), the were highly regarded and are very good but I am not sure if it will add that much to what you have. Maybe in the earlier pieces. Leonskaja seems about in the middle of Richter and Lupu, not as extreme as Richter but slowish, grand scale and "Russian" and not quite as lyrical als Lupu. Whatever I mean with that. I am not such a nut about these sonatas but the discs I heard didn't make me rush to get the rest although they are very good.
Dutch composer Henriette Bosmans' (1895-1952) mother was a Jew, and due to that her music was banned from performance or broadcasting; during the Nazi occupation she lived off food from friends and was almost arrested at a clandestine performance. Her mother was not yet shipped off to a camp when the war ended, and both were suffering from malnutrition and extreme exhaustion. She resumed composing in 1948.