Mercedes already has a lot of info out on their electric EQ range which includes the EQ A hatch and the EQ C SUV and instead of making an all-electric version of the C-Class, they will be announcing a medium class sedan under the EQ banner around 2022. This is good in my opinion because the brand would get diluted otherwise and I expect the C and S Class to be around for quite a long time still.
No electric variant for next Mercedes C-Class. The Germans will launch an EQ sedan instead - MercedesBlog
Mercedes-Benz officials say we will not see a 100% Electric C-Class The Germans want to launch a medium-segment electric sedan under the EQ brand.