(CW3) New Canon 35mm f/1.4L Lens to be Announced in Fall 2015?

I and others on the web have been told that Canon may announce a new 35mm “L” lens later this year, possibly before Fall 2015. While we do not have any specs or other information, I was told that some prototypes are already out in the wild undergoing testing. I strongly suppose this will be a f/1.4 lens, also because we had some patents filed by Canon pointing in this direction (1 | 2).