Firstly, nothing is going to change for some considerable time, between 2 and 5 years.
Actually, exactly 2 years from invoking invoking article 50 of the treaty of lisbon. Yes, that timeframe can be extendet if both sides agree on that, however, dont expect the EU to show any inclination to that.
Secondly, plenty of other EU nations are likely to have similar referendums, so we won't be alone in our region, and in all probability this is a fatal blow for the EU and it'll break apart completely over then next 5-10 years.
Exactly to prevent any similar referendums the EU is forced to play hardball to the extreme. And of course promise those parts of the UK that would rather be independent a fast track entry back in to the club.