Most of the japanese car manufacturers are consolidating production in japan and that was Hondas reason. What a pity it wasnt Brexit how shattering
I heard it follows the trade deal signed recently between Japan and the EU. If there are no longer tariffs then it would probably make sense to produce in Japan. Good news is, after Brexit UK would be able to apply tariffs, so this will be sorted out before they close, they will have to stay in UK.