Richard Murphy talks a lot of sense on a post-brexit British economic plan. My guess is that the government will do none of these things, and will instead steer the country towards being an iniquitous tax haven where most of the people get to grovel for scraps from the tables of the super-rich.
Still, Brexit could bring some advantages if our government was less rubbish.
http://www.taxresearch.org.uk/Blog/2016/12/09/a-vision-for-a-post-brexit-economy/