I think, secretly both sides wanted the UK out of the EU, because that is the only way the EU can "integrate" more. As soon as Merkel has her next government coalition together she and Macron will push for more. They will have all the powers and legitimation they need. I'm strongly convinced that the British payments will be replaced by German money in the way that German regions that have received funds from Brussels won't any longer be eligible for them. There were already articles in the newspapers lamenting about it.