Speaking from Ireland I can tell you leaving the EU is pretty far from our minds, we know where our bread is buttered. Our agricultural sector is going to have to pivot away from the UK, fortunatley food and drink demand is exploding globally and we should be able to do this in time, albeit with some short term pain. Dublin is already reaping the rewards of Brexit, a simple search of news sites will show that. 

As for Northern Ireland and reunification, I think most people view it as an aspiration, but if you were to ask people do we really want to police the place and throw money at it like the British do and most people are wary at least. 

There seems to be some delusion that EU immigration will be replaced by Commonwealth countries, it is partly right, just it will be coming from the wrong commonwealth countries. instead of europeans from christian, liberal backgrounds largely sharing the same values. 

Ireland will do just fine in the EU