EF-M prime moved back until later in 2018

Canon Rumors reports that they have heard back  with respects to the two EF-M lenses, that the one, an EF-M prime will be pushed back until later in 2018.

It's still unknown what this prime would be, even though there's some likely candidates based upon what Sony has come out with for the E mount, and also Canon's own history with the EF-S mount.  The notables being a 35, 50 or 60mm.

CR states;

We’re told that the rumoured new EF-M prime lens that was expected in March for CP+ has been pushed back until later in 2018. Unfortunately we still don’t have [CR3] confirmation of the focal length and aperture yet.

It’s not unusual for lens announcements to get pushed back. We’ve seen it with the EF 11-24mm f/4L, the EF 16-35mm f/2.8L III and the EF 85 f/1.4L IS and likely others we’re unaware of.