If it's just European and associated with beer, they also have gaps at Munich, Prague, Berlin and Cologne. Are there any other reasons to believe it may be Dublin?
How is the runway for Hong Kong nowadays? I know that previously, it used to be said that a Dublin-Hong Kong route would not be viable as it would not be possible to take full cargo onboard because of the length of the runway in Dublin. Is this still an issue for A350s (as in Cathay's fleet) or 787s?