We're told by a new source that the Canon EF-S 35mm f/2.8 M IS STM is going to have a macro illumination feature like the EF-M 28mm f/3.5 Macro IS STM. We can also safely assume that “M” means macro.
When we first confirmed this lens, we weren't 100% sure what the “M” meant in the lens description, but I think it's safe to say this is legitimate and goes along with what a lot of people have been thinking.
The lens is still slated for an announcement on (or around) April 5, 2017.
Thanks for the tip…