I put in a refund request in late April. I got the auto response. I have seen the new schedule for June from the US showing that there are no JFK-FRA flights. I have tried a dummy booking and it won't book. But, when I check flight status, it shows my June 2 JFK-FRA and my June 16 return as still operating. They haven't cancelled the flight, although they acknowledge that the flight is not on the June operating schedule.

Will they eventually formally cancel the flight and notify? I didn't want to wait, so I put my refund request in as soon as they allowed refunds for June travel. I don't expect a refund any time soon, but I appreciate everyone's data points on here.