Rumors coming from the web have it that the next lens Canon will announce is the EF 85mm f/1.4L IS.
This lens was first rumored back in November 2016, and since then we didn’t hear any news. Speculations suggest Canon may announce the EF 85mm f/1.4L IS in Q2/Q3 of 2017. However, I think we will not see it before 2018.
It seems the rumored EF 85mm f/1.4L IS lens is not going to replace the EF 85mm f/1.2.
The next important thing coming from Canon will be the firmware update for he Canon EOS 5D Mark IV.