Im hearing that getting the PIA transit flights may be under threat.
It seems LHE airport may be about to pass its US security audit which will allow PIA to serve LHE-USA direct. SNN/MAN are only served due to the requirement of the USA to be screened at MAN/SNN, so eliminate the requirement, you eliminate the stop over.
However, if the flights do go ahead at SNN, you may see the B77W as its just been announced that the aircraft will replace the B77L from March until May at least.