Interesting article about Qatar Airways considering Belfast International for a Doha Service, but of course Dublin is also being considered...
Flights to Ireland, among options under review, could target either the capital Dublin, competing with Dubai-based Emirates and Abu Dhabi’s Etihad Airways PJSC, or Belfast in Northern Ireland, a location not yet served by any of the three leading Gulf carriers.
Qatar Air Mulls Gatwick Route as Heathrow Flight Upgraded to 787 - Bloomberg Business
I would say it will be Dublin that gets the service but at least they are thinking of starting to Belfast!