Currently everyone is asking whether the EU and the UK can work it out. Yet, in a way, it’s too late: the train has already left the station. The UK will leave the EU, and that will include a fullblown exit from the single market and the customs union.
But on another level, we can still work it out, as we can still find an agreement that achieves the two big goals: a stable and friendly political alliance as the foundation for close cooperation in foreign and security matters, and economic cooperation that allows for an efficient division of labour and trade.