It may not and in fact i believe Eastern may have looked into it but the Humber area is home to many shipping companies, some of whome have offices in Southampton as i know from personal experience and from friends who are forced to make the long drive down there!
Also Copenhagen is a very strong one as when i used to travel there via AMS, there were always others who origionated at HUY, many from Corus, also BAesystems and the various shipping companies in the area!
I dont feel as though Eastern will want to touch this market though and i would be surprised if there was any expansion in terms of routes at HUY in the future.