Thanks for the heads up Merchant - I would think that a 389m extension would allow all the ops described above on aircraft like the 787 - the destinations listed by bristolflyer would surely make it worthwhile?
I seem to remember that the former EWR service was weight limited as 6500ft is tight for transatlantic ops even on a 757.
I would have thought that given the rich catchment and economic upswing the following are possible:
Scheduled
EWR, DXB, IST (unrestricted) and possibly a secong DXB or DOH/AUH
Charter/Seasonal
MCO, GOA, BGI, LAS, YYZ