Canon has just launched a MK II version of their 35mm f/1.4 L lens, and it should be a beauty. Speculation about a second version of this lens has been around for over 5 years I think, ever since the 24mm f/1.4 L II was launched. My guess is that Canon weren’t in such a hurry with the 35mm because the original one was much better received than the first version of the 24mm was.