Tokina 17-35mm f4 Pro FX coming in July (Canon) and September (Nikon)
Tamron Tokina 17-35mm f4 Pro FX lens has release dates, July for the Canon mount and September for the Nikon mount. This coming directly from Tokina Japan, which also has 12 sample images taken with the lens and the 5D Mark II. Samples appear to be around 9mp. (via dpreview Nikon SLR Talk via one of our readers).