One copy of dominate white on black produces white birds with various amounts of black showing.I imagine that most of the chicks would be black with some leakage. You might luck out and get a Lavender with leakage. If I read that correctly two of the potential parents are split to Lavender (visually black but carrying a Lavender gene). I'm not sure what happens when Dominant White and Dominant Black are on the same bird. My whites are recessive so I don't usually outcross them to other colors.
Think austra whites or paint silkies.
Dominant white doesn't do much to gold tones so buff, gold, red etc. will show.