A patent showing 4 new optical formulas for EF prime lenses has appeared.
Japan Patent Application 2018-005133 shows the following:
- EF 50mm f/1.8
- EF 85mm f/1.4 (Not the same as the EF 85mm f.1.4L IS)
- EF 85mm f/1.8
- EF 100mm f/1.8
The EF 85mm f/1.8 and EF 100mm f/2 could both use a replacement, the former being more likely.