Well said Akerosid, glad there's a bit of optimism here! (even though, like many, I'll believe it when I see it)
Runway may not a huge obstacle as the 777-200's that AI use on their long-haul flights are similar to the ones which Delta used to serve Atlanta with from DUB a few years ago which were able to take off from the current runway (as it wasn't fully loaded with fuel).
And remember that the flight time from Dublin to Atlanta westwards is similar to Dublin to New Delhi eastwards, i.e. just under 9 hours, so it should be possible. Also bear in mind that AI are channelling all their international long-haul traffic through Delhi so we would not have to worry about further destinations like Mumbai and Chennai being served using the same equipment.
The destinations across the Atlantic that AI serve are all 7-8 hours flight time so there should be no issue there either.
AI also have the 787's ordered so if they go through, the runway problem will be negated.
If the story is still doing the rounds, there must be some hope!