Three new productions featuring African-Americans are coming to Broadway. “Theatergoers today typically have to go to venues well beyond the neon lights of Times Square to find plays that address modern cultural struggles and ideas that aren’t set to music. The triptych of African-American tales spanning the post-World War II era to the present will temporarily add more color to Broadway’s palette, but along the way may also prompt a discussion about what really constitutes diversity on US theater’s most high-profile road.”