Germany believes that Britain will vote for Brexit in June. As such, Merkel wants Britain to be given fair treatment after the vote.
The Commentator reports that Germany will make the following previsions:
1) Immediately toning down any reference to "punishing" Britain for leaving;
2) Forging a UK-EU cooperation agreement to deal with all strategic, economic and migration issues;
3) Including, as a top priority, the United States, to be an honest broker.
In other words, Germany wishes it to be business as normal wrt business and normal interstate interactions.