Hockenheim, which has a contract for 2016, suffered poor attendances and substantial losses last season after only 52,000 people turned up on race day.
That circuit’s officials were approached by F1 commercial rights holder Bernie Ecclestone but made clear they were not willing to host the race three years in a row unless they received outside assistance.
The high price of tickets to cover the hosting fees, and the return of Austria to the calendar last year have been cited as contributory factors for the dwindling crowds.