Different model generations on one axis

Hello, had an accident with our leasing car, which was paid by the opposing insurance. A tire had to be replaced (1 year old). On the vehicle are privately procured Michelin Crossclimate mounted, the new replaced tire is the new model generation Michelin Crossclimate 2. According to Michelin the rubber compound and the profile was changed. Even if it is allowed by law, a mixed tire is not recommended according to ADAC and the old Crossclimat e is also available in principle. Furthermore, I would like to sell the tyres after the 2 year leasing and there are 4 identical tyres certainly better. Before I turn to the car dealership, does someone have experience whether one is entitled to an identical tyre replacement or alternatively two new tyres for an identical axle?