The precursor to the i3 was the MINI E, of which 600 were made, and it informed the development and production of the i3.
The new Mini E Concept car that made its debut at the Frankfurt Auto Show in 2017 will apparently be in production for the 2019 model year, and the drivetrain will be from the i3.
So basically the i3 will morph into the Mini E, and the lineage will go on even after the i3 is discontinued (or not) after 2020?
The i3 is likely a more premium vehicle that the Mini E will be, and perhaps they will both evolve together on the same platform and continue to be offered in parallel by both Mini Cooper as well as BMW? Or the i3 will be retired and continue in spirit as the Mini E?
Either way, the i3 is not done!