Tamron has announced SP 35mm f/1.8 Di VC USD lens (B&H Photo Video, Adorama) and SP 45mm f/1.8 Di VC USD lens (B&H Photo Video, Adorama), both lenses are cost $599 in US, will be shipping in late September, 2015. Here are first sample images of these two new lenses.
See all sample images at Tamron EU: SP 35mm f/1.8, SP 45mm f/1.8