One of my OU students joked at a recent tutorial that he now hoped Britain would leave the EU - since that would remove half the work for the W200 course.
Alas, that's not on the cards. For him, the exam will be on the 8th October - and withdrawal won't have happened by then.
But even if Britain were to withdraw - we couldn't ignore EU Law. It will continue to impact on our trading with other EU countries (which makes up a large majority of our trade). Norway has never joined - but is greatly affected - and must abide by EU law - though it has no say in the making of EU Law.
This week the House of Commons Library (which is an excellent, independent, research body) published a paper about leaving the EU. http://www.parliament.uk/briefing-papers/RP13-42.pdf. It's well worth reading. The Times wrote "Britain would face a huge bill from the EU and may still have to obey many of its rules should voters opt to leave Europe, an independent analysis has warned."
The summary states -