The last I heard was 80% loads on the ORD route and 75% on the IAD service.
As for expansion, it will be LHR short to medium term (with the possible exception of a JNB service from MAN?) with the bmi hierarchy believing that open skies for LHR will be beneficial to MAN due to a raised profile in the US following the introduction of the inital batch of 5 routes they've plannned for from LHR.
Ringwayman