Interestingly this Autocar article is the first mention of even further expansion of the MINI plant in Oxford possibly later in the decade. Here’s an excerpt:
It was revealed that BMW bosses have been investigating the possibilities of even greater expansion by the end of the decade. But moving a proportion of Mini production overseas has been ruled out for at least three years, and Minis will never be built in BMW plants.
The new Mini will have a substantially modified architecture, which is said to be more easily adaptable for creating new models. A two-seater roadster is on the agenda, along with a much-rumoured station wagon.