The EU has form here. It is an undemocratic institution which won't take NO for an answer. Any country lucky enough to get a referendum on anything to do with the EU will be asked to vote repeatedly until they vote the correct way, i.e. the EU's way.
As much as I abhor the EU and the Lisbon Treaty, I think the Irish are flogging a dead horse. The playmakers in the EU, France and Germany, are determined to enact the treaty by any means more foul than fair.
So determined are they, it is likely that if Ireland again votes NO they will be consigned to a second tier of membership with reduced rights and probably reduced subsidies. Probably alongside Poland and the Czech Republic who are also yet to ratify the treaty.
The Irish government will be enticed with concessions such as a guarantee of an Irish Commissioner and guarantees of Irish neutrality in order to sway a YES vote.
I would hope that once again the Irish electorate sees through this deceit and votes NO.