Would this suggest that United is looking at returning back to British Isles Transatlantic flying? As I know that they ceased this for Transcon flying, so maybe that market will be filled now.
https://www.airliners.net/forum/viewtopic.php?f=3&t=1406913&sid=e420240de8b155efa7df950f3b3a 4d62&start=50