No. And it wouldn't be as far westbound. And you don't really operate to the edge of the theoretical range unless you are happy with plenty of fuel diversions.
But if you look at the map link above and change the range down to something realistic, you'll see that all of EI's current routes with the exception of SFO and LAX are covered. For new routes, the whole of Canada works and in the USA, only Hawaii and California are out (and Hawaii is hardly viable, while there are two existing Californian routes). Eastbound you see Delhi and Mumbai becoming possibilities and it seems to be that an Indian link is one thing badly missing from Ireland's route map.
If we are to apply the same philosophy to India as we are the US, the only real city the XLR could serve would be New Dehli. Is it in IAGs benefit to start funnelling US bound passengers from DEL through DUB? I could see the XLR being useful for the likes of Seattle, and other cities not yet served in the US, but my thought would be as Aer Lingus´ brand becomes more known in Europe and the US (after all that was the media blurb when the rebrand occurred) we could see ATR routes upgraded to A320s, and A320 routes upgraded to neos.