It is in the EU's interest to have an orderly exit for the UK. Merkel has suggested EU and UK take their time and get it right. This makes sense as the EU sells much more to us than we do to them. Our balance of payments are in surplus with ROW, it is trade with EU that causes our worrying overall balance of payments deficit.
We are Germany's 3rd biggest export market after the US and France.
German export and import trade figures can be viewed here:
https://www.destatis.de/EN/FactsFigures/NationalEconomyEnvironment/ForeignTrade/TradingPartners/Tables/OrderRankGermanyTradingPartners.pdf?__blob=publicationFileTheir positive trade balance (exports - imports) with UK in 2015 was €127 612 593 000 €127.6bn, which they won't want to jeopardise.
Dr Richard North with his Flexcit plan is the only coherent, considered one I have seen:
video:
https://www.youtube.com/watch?v=KfEo_TNllk4429 page .pdf:
http://www.eureferendum.com/documents/flexcit.pdfHe explains how EEA is the only practical route for a 2 year negotiating window, with the longer term aim of an EFTA agreement. It took Switzerland 16 years to negotiate their EFTA!
Before we press the article 50 button it makes sense to have pre-article 50 discussions to outline the scope of the talks and setting a schedule. The only country that will probably be awkward is France and that won't be personal as their politicians try to shaft everybody.
I think the onus is on the UK to press the Article 50 button when we are ready. Once the preliminary talks have finished I don't see any point in dragging our heels.
I get the impression that the EU will be glad to see the back of us, so they can get on unfettered with building the EUSSR, which they need to do as the Euro is not sustainable without fiscal transfers, joint-and-severable pooled sovereign bonds and sovereign debt write-offs for those above 120% of GDP. Now we can no longer be tapped up to contribute our share, Germany will have to be the main source of supplying many of the Euro countries with lots of free money, think PIIGS plus France. After German reunification and tax rises, the German taxpayers don't think it is a swell idea that they are the free money providers but I'm sure war guilt will prevail again. However, if they don't then the Euro can't work and survive. Common taxation to remove tax competition will also be introduced which will screw Ireland's and Malta's low corporation tax based economies, but more free German money should smooth that over and likewise transition rates and lower taxes in very high tax countries like France (56% of GDP) will be solved with even more free German money. I'm sure the good old German taxpayer won't mind having pay an extra €3bn in fees to replace ours and another round or ten of ever higher EU unification taxes.