They'll definitely be willing to do it as fast as possible. Obviously until actual exit (which can still be years away) it'll have to be "same as before".
http://atlas.media.mit.edu/en/profile/country/gbr/
The top export destinations of the United Kingdom are the United States ($51B), Germany ($46.5B), the Netherlands ($34.2B), Switzerland ($33.6B) and France ($27B).
The top import origins are Germany ($100B), China ($62.7B), the Netherlands ($50.7B), the United States ($44.4B) and France ($41.5B).
Switzerland and US are not in EU for export side.
China and US are not in EU on import side.
Germany seems to be the biggest loser here in the end (more then 50 billion $ in trade deficit for UK!)
http://www.express.co.uk/finance/cit...outside-the-EU
President Barack Obama yesterday said the UK and EU will remain "indispensable partners" of the United States following the Brexit vote.
The US leader added that the "special relationship" between the Britain and Washington will continue into the future.