I spotted that too Gavin.
I know NAX are starting ORK-BOS with 738's, but MAN-BOS is over 3150 miles which surely stretching it more than a little for a 738, but on the other hand I can't see they have enough 787's to send to MAN either.
Guess we'll have to wait and see...but would be good to BOS back on the departure boards.