Hum. Tricky.I wonder, if anyone has any opinions, what role the diminishing influence of religion in politics may have in potential reunification? As Ulster Brits gradually cease to self-identify as Protestant, do you think that they may come to self-identify as Irish rather than British? It's not incorrect to say that the division in national identity was heavily inspired by the division in religion, at least from the Unionist perspective.
There is a school of thought that religion was only a convenient cover for competing forms of violent nationalism and even when the influence of religion wanes, the hatred is still there becuase relgion is a identifier by shorthand for other things (politics, social world view and etc). Home many times did clergy of all denominations call for an end to violence only to be ignored?
Talking to Unionist buddies, they've no problem with identifying as Irish; after all they do so in large numbers every February-March! but it's what that means . For me, being Irish is a standalone concept whereas they see it as a sub-identity within the British "family". That's an important distinction.
As for the OP - can't see it any time soon. I think it's ceased to be a major issue for anyone south of the border and even north of the border so long as Unionists aren't engaged in a orgy of big mickey swinging then most nationalists are content of a day-to-day basis.