FWIW,
I sat next to a person the other night who flies 2x a month PIT-FRA in paid J. He said that LH was looking at the PIT-FRA route. He was at an informational meeting in PIT where it was said they need 5000 paid J a year to make the commitment. Bayer was also there and they supposedly can do 1000 a year. He said another city was in competition with PIT for the LH route.