I'd love if EK came to DUB it would be fantastic it would definitly work for them! i really do think that the problem with the EI - DXB route was that they have focussed to much on the American market , for e.g. when DXB was axed from DUB in 2008 the slots (-T-T-S-) where used to increase LAX to daily; only also to be axed in November 2008.
Emirates in Ireland (DUB) would be in the right direction!!