Image quality results from the EOS 5Ds R have been added to the Canon EF 35mm f/1.4L II USM Lens page.
We currently have two copies of the 35mm f/1.4 L II lens going through the lab. Results from both will be posted with at least one of the lenses being tested on the EOS 7D Mark II and Canon EOS-1Ds Mark III, allowing direct comparisons with lenses tested on those bodies.
This is a very sharp lens. The contrast at f/1.4 looks great.
As I noted yesterday, B&H has the Canon EF 35mm f/1.4L II USM Lens available for preorder (initial inventory sold out quickly).
Can't wait? The Canon Store has the 35 L II in stock and several are available on eBay.