The Nikon SB-300 Speedlight and Nikkor 18-140mm f/3.5-5.6G ED AF-S DX VR lens are now shipping in the US and Europe. New sample images from the lens can be found here.
The lens is currently in stock at Amazon US, the flash is in stock at B&H.
Amazon UK has the SB-300 flash in stock. The 18-140mm lens will be available in 3-4 days.
Amazon Germany has both the SB-300 and the 18-140mm lens in stock.