You are assuming they will want to have 3 x A380 at DUB before they will even look at BFS. We don't know that.
Belfast is quite well connected to other major airports for eastbound connections, be it with EK or other airlines, preferable to many rather than the 2 hour drive south. The question is, at what point do EK decide that it's worth opening BFS as a destination in its own right. We don't know that either.
But you're right, it may not be this decade. Or maybe it will.
They will add a third 777 before they look anywhere and most likely A380 in future whether it be next Autumn or a few years away.
Two things EK flying from BFS does not limit it to Belfast passengers and it will be as easy for many to travel to DUB as BFS.
Connections off Belfast-Dublin rail line could make it even easier in the very near future
